Watch List notes:

Great Britain, copper-zinc Admiral Vernon medal, 1739, Porto Bello, ex-Adams (Plate).AC-PBv42QQ.13.11 grams, 37 mm.Dark AXF (cleaned and retoned) with slightly crude rims showing small brass spots, bulge in center of reverse, scarce. Tested (XRF) at 48.83% copper and 47.90% zinc (full results on small printout included).Pedigreed to the John Adams collection (plated on p. 77 of his book).
($150-225)