Fig. 14
From: A copper alloy light cannon from Grodno: an example of early firearms from Eastern Europe
Cu–Pb–Sn ternary graph of the Grodno cannon’s chemistry against the background of comparative data. Legend: 1–4: Grodno, Rus; 5: Loshut, Sweden; 6: Otepää, Livonia; 7: Kalisz, Greater Poland; 8: Rakov, Bohemia; 9: Rokštejn, Moravia; 10: Wenecja, Greater Poland; 11: Valečov, Bohemia; 12: Karpenstein, Silesia; 13: Smederovo, Serbia, 14: Gun 1, Mstěnice, Moravia; 15: Gun 2, Mstěnice, Moravia; 20: Grose Bochse, Marienburg, Teutonic Order; 28: Cannon 1, Sv Pavao wreck, Mljet, Croatia; 29–31: Cannon 2, Sv Pavao wreck, Mljet, Croatia; 32–34: Cannon 2, Sv Pavao wreck, Mljet, Croatia; 35: Cannon 4, Sv Pavao wreck, Mljet, Croatia; 36: Cannon 5, Sv Pavao wreck, Mljet, Croatia; 37: Cannon 6, Sv Pavao wreck, Mljet, Croatia; 38: Cannon 7, Sv Pavao wreck, Mljet, Croatia; 39: Cannon 8, Sv Pavao wreck, Mljet, Croatia; 42: Benin, Nigeria; 43–46: Cannon A, Megadim wreck site, Israel; 47–50: Cannon B, Megadim wreck site, Israel; 51–54: Cannon C, Megadim wreck site, Israel; 55–58: Chamber 1, Megadim wreck site, Israel; 59: South North Sea; 60–64: cannons from Euro-Maasgeul Channel (for details see Additional file 1: Sheet 1)