^Lot 1575 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. AC-FCv5D. 16.13 grams; 41 mm. Bold AU with dark, glossy surfaces, traces of encrustation in crevices, dentillated rims, this variety apparently a copy of the previous ones that AC calls "one of the great curiosities of the series." AC: XRF: 75.91% copper, 21.30% zinc, 2.29% lead. Pedigreed to the John Adams Collection (with his handwritten tag).