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Black and white postcard showing four views of La Glacière Cave: dark entrance, stalactites, frozen waterfall, and exterior building. The back details its location (30 km from Besançon, 50 km from Saut du Doubs), its depth (60 m), its height (30 m), and its unique phenomenon of year-round ice preservation, explained by Professor Fournier. A mention of floods in 1910 and 1953.