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Interior view of the Han Cave, featuring the entrance to the Draperies Hall with impressive stalactites and stalagmites. Three visitors are visible on a platform at the back. On the reverse, the card bears a 5-centime green stamp, a Rochefort cancellation of August 3, 1921, and handwritten text addressed to Monsieur S. A. des Grottes de Han-sur-Lesse, Brussels.