According to an article in the swiss journal "NET Journal" that has been published earlier in february 2013, a group of business partners of Andrea Rossi visited his "new laboratory" in Ferrara the day 14 of december 2012. The group saw the ongoing experiment and could take some pictures. The pictures were published by the NET Journal earlier than the Levi report later in may 2013. Some pictures look very similar to the pictures from the Levi report. One picture shows the display of the PCE830. (the same picture was put online in an italian forum - cobraf - but was immediately deleted after my comment 2 days ago and replaced a few hours later by a picture of Sean connery as James Bond in the film Dr. No)
Present was Adolf Schneider and his wife Inge Schneider (Transaltec AG, they own the license to sell the Ecat in Switzerland) along with german and swiss business partners of Schneiders Transaltec AG. That day (14 of dec.) Rossi himself was present and explained the experiment to the visitors saying that he doesn't know the identity of "the four professors" who should later perform as he says a "peer review"of the measurements made. According to NET Journal, Rossi said that "he would publish the results of this test anyway, whatever the results would be". According to this article, the experiment started seven days before (7 of december) and was sheduled to stop the next day, 15 of december. NET Journal, issue 18, january/february 2013, pages 13-15 (article in german language) Link: http://www.borderlands.de/net_pdf/NET0113S13-15.pdf In the Levi report, the test started 13 of december and ended 17 of december. This is compatible with this article. Maybe, it was decided later to continue the test after december 15. This confirms (by the published picture), that during the ongoing experiment the PCE830 was showing completely useless data, nothing like a "gem". Furthermore it shows, that Rossi had access to the ongoing experiment. As the author of the article does not talk about any "professor" present that day, we may conclude that nobody of the Levi group could see what he did there.
