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Keywords from Image Description:
John Palaiologos Fossati drawing of mosaic in Hagia Sophia cropped. en John Palaiologos holding akakia ca Fossati drawing of mosaic north side of the great eastern arch in Hagia Sophia Constantinople Archivio di Stato del Cantone Ticino Bellinzona Switzerland Fondo Fossati Nr Reproduced in Ruth Macrides Joseph Munitiz Dimiter