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Interior of the underground museum of the Dragon Cave in Chemin des Dames, with a mannequin in uniform, display cases, and flags hanging on the walls. Reverse: postcard sent to Mr. and Mrs. Sonorja at Le Religc Kerhun, dated August 16, 1979, with a 1 franc stamp and a postmark from Ternay-en-Tardenois (Aisne).