Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon / Porto Bello, ex-Adams. AC-PBv45PP. 11.00 grams; 37 mm. Very thin flan with slightly more tin content than most, XF+ with some lighter-colored luster here and there, nice comparison with the preceding lot in silver as this one shows the T that got erased. 39.89% copper, 52.30% zinc, 5.96% lead, 1.04% tin. Pedigreed to the John Adams Collection (with his handwritten tag).
Estimate: 200 - 300 USD