Watch List notes:

Great Britain, copper-alloy Admiral Vernon medal, 1739, Porto Bello, no portrait, ex-Adams. AC-PB2C. 20.15 grams, 39mm. Darkly toned AU with no marks or problems, choice details, thick flan, specific gravity measured to be 8.262 (a bit below bronze, which it looks like). Pedigreed to the John Adams collection.
($200-$300)