Keywords: Pietra Dura Bild Musikant.jpg Pietra-Dura-Bild Musikant Sackpfeifer 14 5 x 10 5 cm http //www dorotheum com Dorotheum turn of the century 20 anonymous PD-art-100 Images from Dorotheum Pietre dure Bagpipers in art Commesso art technique Modern opus sectile |