Watch List notes:

Great Britain, copper-zinc Admiral Vernon medal, 1739, Porto Bello, ex-Adams (Plate).AC-PBv26U.17.91 grams, 37 mm.AU-, dark but well detailed, with light crust around details and satin fields, small (natural) voids in rims. Tested (XRF) at 55.78% copper and 40.19% zinc (full results on small printout included).Pedigreed to the John Adams collection (plated on p. 66 of his book).
($200-300)