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{{Information |Description={{en|1=Illustration of the entrance of the cave of St. Pieter near Maastricht in the second volume of the "Histoire naturelle de la montagne de Saint-Pierre de Maestricht" by Barthélemy Faujas de Saint-Fond (1741 - 1819).}} |So
You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
