Dear all, This is my first message to this mailing list and I do it under the suggestion of John Davis from the UK. My filed of research within the University Complutense of Madrid is astrolabes in al-Andalus and Medieval Spain and my knowledge on sundials is not that high. The reason of this message is to ask you about the four stone circles attached to the upper part of the South wall of the South Transept of the Salamanca Old Cathedral (12th century). Detailed photographs taken from the roof of the cathedral are available in:
https://www.dropbox.com/home/Salamanca%20Cathedral%20stone%20circles%20in%20South%20wall The stone circles seem to have been located there in purpose and possible reasons like holding coat of arms or any other kind of sculpture have been discharged for various reasons. This South wall is only visible from the cloister. Our first idea was to be a kind of sundial but completely different from the many medieval sundials engraved in south walls of cathedrals or other buildings in Spain with their well known layout of engraved hour lines. Have you seen anything similar? Any idea from your side will be more than welcomed. Best regards, Azucena [image: LOGO UCM oficial.png] Dra. Azucena Hernández Pérez Universidad Complutense de Madrid *https://www.ucm.es/historiadelarte/azucena-hernandez-perez <https://www.ucm.es/historiadelarte/azucena-hernandez-perez>* *https://ucm.academia.edu/AzucenaHernandez <https://ucm.academia.edu/AzucenaHernandez>*
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