^Lot 1176 Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and cannon and ship / Porto Bello, ex

Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and cannon and ship / Porto Bello, ex-Adams. AC-PBvi4D; Betts-unl. 12.32 grams, 38 mm. AU- with luster in even chocolate-brown color, very well-executed and well-preserved. Adams: " The manufacture of this variety rises to greater heights than the engraver, contributing high double rims and a flat edge." XRF: 41.55% copper, 51.14% zinc, 5.17% lead. Pedigreed to the John Adams Collection (with his handwritten tag).