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Black and white illustration of a cave with stalactites and stalagmites reflected in calm water. Printed text at the bottom: 'GROTTES DE BETHARRAM. — LA CHAMBRE DES GOUTTES'. Back: handwritten message addressed to 'Madame Tôme' in La Viste, Saint-Louis, with a 10-centime French stamp dated 22 July 1907 and a postmark of 'BÉRIGNAC-LES-DURHÔNE'.