^Lot 1576 Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and Fort Chagre / Porto Bello, ex-Ada

Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and Fort Chagre / Porto Bello, ex-Adams (Plate). AC-FCv7H. 14.53 grams; 37 mm. Dark, net XF with smooth fields but flat face and other high points, tall and thick rims, scarce variety. XRF: 51.50% copper, 45.21% zinc, 2.53% lead. Pedigreed to the John Adams Collection (with his handwritten tag), plated on page 147 of Medallic Portraits of Admiral Vernon (2010), by Adams and Chao.