Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and

Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and Brown / Porto Bello, ex-Adams. AC-PBvb4G. 15.54 grams; 37 mm. Dark brassy XF with faint traces of original color, stippled obverse field. XRF: 44.17% copper, 49.27% zinc, 4.76% lead. Pedigreed to the John Adams Collection (with his handwritten tag).

Estimate: $250 - $375