Léopold Bernard, ‘Double-Barrel Breech-Loading Pinfire Shotgun’, 1866, The Metropolitan Museum of Art

dated 1866; French, Paris
http://www.metmuseum.org/art/collection/search/24957

Image rights: The Metropolitan Museum of Art (Purchase, The Sulzberger Foundation Inc. Gift and Rogers Fund; Bashford Dean Memorial Collection, Funds from various donors, Gift of William H. Riggs, The Collection of Giovanni P. Morosini, presented by his daughter Giulia, and Gift of Charles M. Schott Jr., by exchange; and gifts and funds from various donors, 1993), licensed under CC0 1.0 Universal