Email digest for the Global Conservation Forum (ConsDistList) egroup. ------------------------------------------------------------------------------------------------------------
1. Time-Based Media Fellowship at Heritage Conservation Centre in Singapore 2. Darkened lead white in wall paintings 3. Book Conservation position at Graz University Library 4. TCC@50 - Online ticket sales extended to June 9th 5. Conservation Internship (9 month) UCC Library - Ireland 6. Cultural Heritage Image Registration Survey [Final Deadline: 31st July 2025] 7. RE: Cleaning Gravestones with D/2 Biological Solution 8. The International Iron Gall Ink Meeting 2025: Towards Sustainable Preservation (IGI2025) PORTUGAL 9. Call for Papers: WAAC 2025 in Anchorage, Alaska, September 17-19 10. "Conservation of Traditional & Contemporary Thangka & Paubha Seminar" ------------------------------------------------------------------------------------------------------------ 1.From: Fabiola Rocco Posted: Tuesday June 3, 2025 6:07 AM Subject: Time-Based Media Fellowship at Heritage Conservation Centre in Singapore Message: Heritage Conservation Centre Time-Based Media Fellowship 2026 The Heritage Conservation Centre (HCC) welcomes applications for a 6-month to 1-year[1] <https://www.dpconline.org/news/job-vacancies/vacancy-fellowship-26-hcc#_ftn1> fellowship opportunity in Time-Based Media Conservation starting January 2026. Over the past twenty years, the Singapore National Collection has seen an exponential increase in the number of Time-Based Media (TBM) artworks. The collection counts more than 200 works, acquired primarily under the purview of National Gallery Singapore (NGS) and Singapore Art Museum (SAM). These include video, audio and software-based artworks. The fellowship will focus on a broad range of tasks such as supporting a digital survey of the Time-Based Media collection and prioritising artworks by treatment urgency, performing condition checks and supporting exhibition works. The fellow shall also contribute to the Time-Based Media workgroup discussions, such as accessioning workflows and a long-term preservation plan. Key tasks: Perform condition assessment, testing, and complete condition documentation for time-based media works including time-based media installations. Recommend and execute treatment on works of art in consultation with the TBM conservator. Keep full documentation of treatments. Participate in the HCC Collections Survey Project. This task includes completing the intake process for time-based media artworks through ingestion, documentation, condition check, as well as sorting the works by urgency of treatment. Accessioning and analysis of new TBM acquisitions. Forensic Recovery of Evidence Device (FRED) Workflow Creation: Contribute to operational workflows and use cases for a FRED forensic workstation. Develop a research project based on the interest of the fellow and the needs of the conservation department. Eligibility Minimally a Master's degree in conservation or related discipline, such as audiovisual archiving and preservation, computer science, and familiarity with the American Institute for Conservation Code of Ethics and Standard of Practice. Understanding of digital preservation principles and practices. Prior experience with digital file management and analysis, specifically with video or software files (desirable). Experience with a Collections Management System (desirable) Experience with FRED forensic workstations (desirable) Stipend The position will come with a monthly stipend of SGD5,000 and a one-time relocation cost of SGD3,000*. *Relocation cost will be paid to a selected fellow who is not a resident in Singapore. Application Instructions Electronic applications should be submitted to <[email protected]>[email protected] <[email protected]>. The application package attachments should not exceed 10MB in total. The application package should include: Cover Letter Resume (maximum 2 pages) An example of a recent treatment of a TBM work Completed application form (Annex A <https://docs.google.com/document/d/1u9nclhdLd8SxOFs2fLYgxxtl4TvU5zgHkpLWS62OEEk/edit?usp=sharing>) Recommendations from two referees in support of the application proposal. Referee should state how long and in what capacity he/she has known the applicant and evaluate the scholarly merit of the proposed research project, as well as the applicant's research potential. Referees may also send the letters directly to <[email protected]>[email protected] <[email protected]> with subject line "Research Fellowship 2026_<name of applicant>". Candidates will receive email acknowledgements of the receipt of their applications by August 2025. They will be informed of the results by September 2025. Shortlisted applicants will be contacted for a video interview. Incomplete and late applications will not be considered. Applications close on 31 July 2025. For enquiries, please contact <[email protected]>[email protected] <[email protected]>. [1] <https://www.dpconline.org/news/job-vacancies/vacancy-fellowship-26-hcc#_ftnref1> Final fellowship duration will be determined based on prevailing Ministry of Manpower guidelines, and will range between 6 months and 1 year. ------------------------------ Fabiola Rocco Conservator, Contemporary Art Singapore Art Museum Singapore Singapore ------------------------------ 2.From: Giulia Russo Posted: Tuesday June 3, 2025 6:07 AM Subject: Darkened lead white in wall paintings Message: Dear colleagues, my name is Giulia Russo, and I am a wall paintings conservator and scientific collaborator at the University of applied sciences and arts of southern Switzerland (SUPSI) in Mendrisio. I'm currently involved in a research project coordinated by Patrizia Moretti, titled "Darkened lead-based wall paintings: innovative treatments to stabilize the recovered original colors" (https://data.snf.ch/grants/grant/208981 <https://data.snf.ch/grants/grant/208981>), funded by the Swiss National Fund. The project seeks to investigate these alterations with a particular focus on the darkening of lead white. I am reaching out to better understand how widespread this phenomenon might be beyond the findings in existing literature. In this context, we are eager to learn about your experiences and insights. Have you directly encountered cases of lead white darkening on wall paintings, or heard about them from colleagues? Additionally, we are interested in knowing your approach when dealing with this issue. Do you treat it, and if so, what methods or interventions do you typically employ? Any details regarding treatment practices and procedures would be extremely valuable for our study. I look forward to your response and the opportunity to learn from your expertise. Best regards, Giulia Russo ------------------------------ Giulia Russo Stone and wall paintings conservator Scuola Universitaria Professionale della Svizzera Italiana Mendrisio Switzerland ------------------------------ 3.From: Theresa Lupi Posted: Tuesday June 3, 2025 6:09 AM Subject: Book Conservation position at Graz University Library Message: We are seeking a bilingual (German and English) book conservator for one year to work on an exciting project. See details here: https://jobs.uni-graz.at/de/jobs/c68820df-246e-0e8e-65b4-681074130a0b <https://jobs.uni-graz.at/de/jobs/c68820df-246e-0e8e-65b4-681074130a0b> Dr Theresa Zammit Lupi PhD (London) ACR Buchrestaurierung | Book Conservation Sondersammlungen | Special Collections Universitt Graz | University of Graz 4.From: Joanne Hackett Posted: Tuesday June 3, 2025 6:09 AM Subject: TCC@50 - Online ticket sales extended to June 9th Message: 2025 marks the 50th anniversary of the establishment of the Textile Conservation Centre at Hampton Court Palace. Whilst its physical location and name have changed, its core aim has remained the same: to educate textile conservators in a dynamic and professional teaching, practice and research environment. Using this significant milestone as a launching point, the conference seeks to celebrate and challenge the diversity, maturity and creativity of our profession. We will explore the many facets of the profession, looking to the future whilst also responding to the legacy of the past and exploring our relationship with others. The 2-day hybrid conference will comprise presentations, posters and round table discussions involving established and early career speakers from around the world. Join us online - Tickets are available until June 9th at the link below. The conference will not be recorded. TCC@50 : Building on 50 Years of Training, Practice and Research Tickets, Mon, Jun 16, 2025 at 9:30 AM | Eventbrite <https://www.eventbrite.co.uk/e/tcc50-building-on-50-years-of-training-practice-and-research-tickets-1277573489699?aff=ebdssbdestsearch> ------------------------------ Joanne Hackett Lecturer in Textile Conservation University of Glasgow Kelvin Centre for Conservation and Cultural Heritage Research Pinner United Kingdom ------------------------------ 5.From: Louise O'Connor Posted: Tuesday June 3, 2025 9:32 AM Subject: Conservation Internship (9 month) UCC Library - Ireland Message: UCC Library offering its first 9-month conservation internship, in partnership with the Heritage Council. The internship will combine studio practice and research and will develop and broaden the intern's knowledge and experience. They will work on a variety of collections, as well as assisting in the preparation and installation of items for exhibitions, loans and digital photography. The intern will be encouraged to present and share their work to diverse audiences. The intern will work under the supervision of an accredited conservator in the library's new Preservation Lab and will be part of the Special Collections and Archives <https://libguides.ucc.ie/special_collections_and_archives?menu> team. The internship is part of the Heritage Council's commitment to the promotion of best practice for conservation in Ireland. Requirements Recent graduate (2024-2025) from a recognised book/paper conservation programme Practical experience of conservation treatments (paper and/or book or parchment) Experience in surveying/dealing with printed and archival collections Ability to work independently and as part of a team Excellent communication skills Stipend (9-month): €26,620 (subject to statuary deductions) Applicants should ensure that they are eligible when applying to live and work in Ireland. Applications from non-conservation graduates will not be considered. Interested candidates should submit a CV and short covering letter (max 500 words) by 5pm on 27th June 2025 via the form on this webpage - Home - Conservation Internship - UCC Library at University College Cork Library <https://libguides.ucc.ie/conservation_internship> Interviews to take place online (Teams or Zoom) in late July. The expected start date is October 2025. ------------------------------ Louise O'Connor Conservator University College Cork, Library Ireland ------------------------------ 6.From: Katherine Sephton Posted: Tuesday June 3, 2025 9:32 AM Subject: Cultural Heritage Image Registration Survey [Final Deadline: 31st July 2025] Message: Dear Colleagues, I am reposting this survey on current image registration practices as research for my PhD that I shared on this forum a few months ago in case anyone who would be interested in providing their insight missed it. The deadline for responses has now been set to 31st July 2025, so please take some time to fill it out if you are interested in improving your current methods. I look forward to any information you may share with us. Have you ever attempted to align images acquired using different imaging techniques (e.g. different image modalities) and where the image resolution varies, as a part of a cultural heritage analysis of a painting or object? Whether you align detailed images to a larger reference image, or mosaic images together to make a whole composite image, we would like to hear about your workflow. By taking part in this survey, you are helping improve the understanding of the challenges currently present in the cultural heritage community regarding image registration for my PhD project in collaboration with Imperial College London and The National Gallery, London. This project aims to improve the automation and efficiency of multi-modal image alignment by creating user-friendly tools, capable of handling images of varying resolutions. The resulting software from this project will carry out this essential first step to allow users to exploit the wealth of information contained within multimodal images and datasets now being generated within the heritage sector, whether by visual inspection or advanced signal processing approaches. Please note that this survey will not store any personal data other than any responses you provide. Alternatively, please feel free to contact me by email: [email protected] <[email protected]> or on LinkedIn, if you would like to expand on your answers or keep in touch with the project. Click the link to fill out the survey: https://lnkd.in/evNvUZ9E <https://lnkd.in/evNvUZ9E> ------------------------------ Katherine Sephton PhD Researcher The National Gallery London United Kingdom ------------------------------ 7.From: Monona Rossol Posted: Tuesday June 3, 2025 9:34 AM Subject: RE: Cleaning Gravestones with D/2 Biological Solution Message: James, I don't think you've got a less toxic product there at all. The quaternary amines, like all new chemicals in commerce, were assumed to be nontoxic. Then a company that breeds mice and rats for toxicity test, rodents whose genetic parameters are well-known, suddenly saw mouse and rat off-spring with spinal bifida. The only thing that had changed was their cages were now cleaned with a product containing quats. That led to more experiments showing birth defects. And the cancer potential still hasn't been assessed, but they clearly can mess with us. (Good coverage of this is in the August 2, 2020 Chemical & Engineering News, VOL98, ISSUE 30.) It is my premise that section 11, Toxicity, on the SDS should be looked at to provide information on both what is known and what is NOT KNOWN. And most of our chemicals only have at best a little acute data. Just look at that section and see what data is actually there. When there is no data on chronic hazards that means the chemical has never been tested for chronic hazards. Or when they make those stupid statements about the chemical not being listed as a carcinogen by IARC, NTP or OSHA, realize that they aren't listed because the chemical has never been tested for cancer.. As long as our laws assume chemicals are safe until proven guilty, and as long as it is rare when new chemicals are taken to trial (chronic toxicity studies), good precautions should be exercised with them all. If it is not good food, don't allow it in your body. I'll take a pill and lie down now. ------------------------------------------- Original Message: Sent: 6/2/2025 7:10:00 AM From: James Moss Subject: RE: Cleaning Gravestones with D/2 Biological Solution A CORRECTION to my original posting and a THANK YOU. This weekend, Howard Wellman gently pointed out to me that I had used the wrong SDS (similar name but different product) in my original posting. This was the result of Googling "d2 cleaner sds"! What I should have done is gone to D2 Biologics "About" page and opened up their link to their SDS. I am greatly embarrassed!!! The following sentence in the first paragraph needs to be modified: "I've looked at D2's WEB site and their product SDS (mixture contains trisodium nitrilotriacetate and sodium metasilicate, anhydrous which are considered hazardous chemicals to humans). " THEIR PRODUCT DOES NOT CONTAIN ANY OF THESE CHEMICALS The CORRECTED sentence should read: "I've looked at D2's WEB site and their product SDS, Section 3 "Composition/Information on Ingredients" reproduced below: CAS # Chemical Name Concentration by wt. 7732-18-5 Water 85 - 97% 68424-85-1 Quaternary ammonium compounds, ADBAC blend < 1% 68424-95-3 Quaternary ammonium compounds, DDAC blend < 1% 68439-46-3 Non-ionic surfactant 2 - 4%" Supersedes Revision: 02/04/2015 Reference: https://static1.squarespace.com/static/646546ce4f831c0ce0779a7c/t/648e43a306a583532ea2ceef/1687045027882/SDS_D2-2019_rev_1.pdf <https://static1.squarespace.com/static/646546ce4f831c0ce0779a7c/t/648e43a306a583532ea2ceef/1687045027882/SDS_D2-2019_rev_1.pdf> NOW, the THANK YOUs: Thank you to all of you who responded to my query. You have given me a lot to think about. I am very grateful that you took some time out of your busy life to share your thoughts and ideas with me. I had no idea that I would be dealing with biological films and quats (to the best of my knowledge, those are not seen or used in clocks!). AND, thank you, AIC/FAIC for sponsoring/supporting the Global Conservation Forum (ConsDistList) Best Regards, Jim Moss ------------------------------------------- Original Message: Sent: 5/30/2025 1:20:00 PM From: Howard Wellman Subject: RE: Cleaning Gravestones with D/2 Biological Solution Jim, There have been a lot of great responses to your original query, but I realized that some of the issues you raised may not have been addressed. So I took the time to go review the SDS on the D/2 website and also dig out my notes from my personal discussions with the developers and manufacturer of D/2. 1) I cannot find mention of the two chemicals you cite (trisodium nitrilotriacetate and sodium metasilicate, anhydrous) in the SDS. Can you tell me where you saw those? 2) A couple years ago I called Tony Kinnari at D/2 and asked about the ammonia content in a quaternary ammonium compound, specifically because I was concerned about reaction with bronze plaques and hardware on gravestones. I was told that the chemistry of "ammonium" in this case refers to a nitrogen with three branching functional groups, not to the specific molecule NH3 of ammonia, which is not present in D/2. So this should ease fears about its effect on copper alloys. Although as you say in your message, no one is likely to use D/2 on a bronze object deliberately, since bronze doesn't grow that kind of biological community. 3) I also asked about the presence of free chloride ions (many quats are ammonium chloride salts) (and forgive me if I do make incorrect chemical names here), based on my worries about the effects of chloride on iron alloys used in gravestone hardware. They pointed out (and see the SDS) that in the D/2 product, the quats are 2% of the total mixture, therefore, free chloride ion is likewise 2%, which is far less than most other commercial cleaning products, especially bleaches. You might get that much free chloride ion wicking up through the gravestone from groundwater? Which explains why so many historic gravestones already suffer from corroding iron pins prior to the use of modern cleaners? 4) Jason Church at NCPTT who did many of those tests on D/2 did not find any damage to stone from recrystallization of the chemical, if it even occurred. 5) Regarding human safety, I admit that I find the odor of D/2 harsh, but don't forget that hospitals and food service industries have been using similar quats for years as surface sanitizers, and especially during the pandemic. Maybe there are subtle differences between those quats and D/2 that I'm not aware of, and I regret that I haven't read any specific publications addressing those questions. I hope that this contributes to the conversation. Sincerely, Howard ------------------------------ Howard Wellman Halethorpe MD ------------------------------ ------------------------------------------- Original Message: Sent: 05-27-2025 08:40 From: James Moss Subject: Cleaning Gravestones with D/2 Biological Solution Dear Colleagues, I am a Cemetery Commissioner in my small Town (I am also a retired Conservator of Clocks). Members of my Committee have suggested using a commercial product called D2 to clean the gravestones of lichens and accumulated atmospheric "dirt". I've looked at D2's WEB site and their product SDS (mixture contains trisodium nitrilotriacetate and sodium metasilicate, anhydrous which are considered hazardous chemicals to humans). Their WEB site [ https://www.d2bio.com/ <https://www.d2bio.com/> ] claims the following: "National Parks Study Recommends D/2 for Government Headstone Cleaning" : Researchers studied five different cleaners on stones located in five different climates at locations across the United States. Microbiologists at Harvard University evaluated samples for regrowth of microorganisms including bacteria, fungi, and algae. D/2's quaternary ammonium solution came out on top! [Note: any mention of ammonia or its relations immediately causes my antennae to arise because it can cause Stress Corrosion Cracking of brass, a metal that 80% of clocks are made with] AND: The National Cemetery Administration now uses D/2. "The NCA entered into an agreement with the National Center for Preservation Technology and Training, NPS, to evaluate marble cleaners in an effort to minimize damage to historic headstones. The 3-phase study began in 2004 and was completed in 2011. The best - practice recommendations resulted in NCA's determination to use the preferred cleaner, D/2 Biological Solution..." (Page 3) AND: "No Other Solution is more trusted by conservators" Cleaning of Stone is not my specialty, I have not been trained to do stone treatments. I know nothing about the effects of using the wrong chemical solutions or procedures on stone. All that I am aware of is that stone is porous and solutions can penetrate the stone and could cause long term degradation. I will attempt to contact a Conservator whose specialty is the cleaning of stone. In the meantime, I turn to you as a font of knowledge..... My first question to you is: Is using this commercial solution harmful to the stones that are commonly used as cemetery markers such as slate, granite, and marble (aluminum and brass are also used but as far as I know, D2 is not used to clean these metals)? My second question is: If D2 is not acceptable are there other safe methods that could be used by non-Conservators or Citizen Volunteers that would not cause short or long term harm to these objects? Your insights, help, and guidance would be most appreciated. Sincerely Jim Moss, Horological Conservator, AIC PA retired 8.From: Valeria Orlandini Posted: Tuesday June 3, 2025 4:59 PM Subject: The International Iron Gall Ink Meeting 2025: Towards Sustainable Preservation (IGI2025) PORTUGAL Message: The International Iron Gall Ink Meeting 2025: Towards Sustainable Preservation (IGI2025) was held on May 7-9, 2025 in Caparica Portugal. Salvaging Iron Gall Ink-Based Collections from Ink Corrosion, Fungal Attack, and Climate Change: Considering the Past and the Future https://sites.fct.unl.pt/igi2025 <https://sites.fct.unl.pt/igi2025> The following main topics were discussed: Innovative Methodologies for The Preservation of Heritage Written with Iron Gall Inks Degradation Mechanisms of Iron Gall Inks Development/ Evaluation of Conservation Treatments for Iron Gall Inked Objects Assessment Surveys of Iron Gall Inks Documents Case Studies Organizing Committee: Maria Joao Melo Silvia Oliveira Sequeira Natercia Teixeira Vanessa Otero Paula Nabais Rafael Javier Diaz Hidalgo Malihe Sotoudeh Conservation is a multidisciplinary subject, which provides a rich field for research. As a result, it is not only possible, but also valuable and rewarding, to take a single material such as iron gall ink and consider its many characteristics from a variety of viewpoints. Although there have been many conferences, courses and publications focusing on specific aspects of ink gall ink, both the meetings hosted by the University of Northumbria Conservation of Fine Art Programme in September 2000 by Jean E. Brown as well as the one organized by (the late) John (J.B.G.A.) Havermans, Ph.D. from TNO, Build Environment and Geosciences in Delft, The Netherlands - Metals in Paper (MIP) EU Thematic Network - 2nd Iron Gall Ink Meeting 2006 in Newcastle upon Tyne, in the United Kingdom provided a holistic overview of the material through manufacture, application, degradation, history and conservation treatments to aspects of multiple investigations. It can be all too easy for a conservator or a conservation scientist to become exclusively focused on the degradation instigated by an inherently destructive material, such as iron gall ink. However it is valuable to reflect on why such a material continued to be so widely and extensively used over such a long period. This is particularly puzzling when it is remembered that its destructive characteristics were clearly recognized at a very early date. It became clear that iron gall ink has exceptional qualities, which surpass those of other inks. It has a capacity for refinement and rhythm, which in the hands of an artist, can result in an object that has vitality, is dynamic as well as enlightening. It is these intrinsic qualities of iron gall ink that made contemporary artists and inscribers continue to use it. Thus, conservators are very concerned to identify the components of the elements present in these inks and preserve these objects for posterity. During the 'International Iron Gall Ink Meeting 2025' last month at the NOVA SCHOOL OF SCIENCE AND TECHNOLOGY | NOVA FCT in Caparica we spent many hours discussing extensively about metal-tannic inks, analyses, treatments and the multiple recipes available among others. These workshops were offered: WS1 - "The manufacture of Iron Gall Inks: retracing past recipes" by Natércia Teixeira, Rafael Javier Díaz Hidalgo and Malihe Sotoudeh WS2 - "Making Iron Gall Inks with or without vitriols: All you need is soluble iron" by Birgit Reissland, Véronique Rouchon and Ira Rabin WS3 - "Persian Medieval Inks, Dyes and Sizings on Paper Supports Based on Taimurid to Qajar Historical Recipes" by Sadra Zekrgoo and Mandana Barkeshli WS4 - "Is it an iron gall ink? - Different approaches and challenges in IGI identification" by Paula Nabais and Sílvia Sequeira There is more to come...for those colleagues interested on ink corrosion. ------------------------------ Valeria Orlandini Conservator of Works on Paper and Photographic Materials Chevy Chase MD (301) 657-2682 ------------------------------ 9.From: Stephanie Black Posted: Tuesday June 3, 2025 5:17 PM Subject: Call for Papers: WAAC 2025 in Anchorage, Alaska, September 17-19 Message: The Western Association for Art Conservation is now accepting proposals for its 51st Annual Meeting September 17-19 in Anchorage, Alaska. We are excited to organize an in-person conference full of opportunities to connect with each other and share our amazing work. Where we go as a profession is up to all of us, and the WAAC conference is a great way for us to come together as a community. Presentations will be held September 18-19 at the Anchorage Museum, with pre-conference tours, workshops, and volunteer opportunities on September 17, and optional wildlife excursions September 20. Keep an eye out for more details by the end of June! Please consider presenting a paper at the WAAC conference. It can be on any topic – a new (or old) technique, a current project, a specific treatment, or thoughts on the future! Submit presentation abstracts directly to Monica Shah, WAAC President, at [email protected] <[email protected]>, and include "WAAC conference proposal" in the subject line. The deadline is June 30th. Sincerely, Monica Shah and Stephanie Black ------------------------------ Stephanie Black Conservator Anchorage Museum Anchorage, Alaska ------------------------------ 10.From: Ann Shaftel Posted: Tuesday June 3, 2025 9:49 PM Subject: "Conservation of Traditional & Contemporary Thangka & Paubha Seminar" Message: "Conservation of Traditional & Contemporary Thangka & Paubha Seminar" September 14-19, 2025 Kathmandu, Nepal This six-day immersive seminar in the creation and conservation of both traditional and contemporary thangka and paubha takes place in the heart of Nepal. It offers a rare opportunity to learn from renowned experts, gain on-site experience, and visit monasteries, communities, museums, and artist studios where these sacred artworks are in traditional daily use; these are places where they have been created. Set in Kathmandu's vibrant heritage district, through expert-led presentations, hands-on activities, and guided site visits, participants will gain conservation knowledge and a deeper understanding of these revered art forms. As conservation professionals, your special interests will be accommodated. Previous sessions have proved highly valuable for participants. Led by Conservator Ann Shaftel, with 55 years of thangka conservation experience in Nepal, with lectures and presentations by international and local experts. Our home base in Kathmandu is the Taragaon Next museum. Registration is now open for this September's session, and a few openings remain, waiting for you! Please contact us for futher information, Ann Shaftel and Treasure Caretaker Training non-profit team email: [email protected] <[email protected]> WhatsApp: 0019022221467 You are subscribed to "Global Conservation Forum (ConsDistList)" as [email protected]. 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