Watch List notes:

Great Britain, copper-zinc Admiral Vernon medal, 1739, Porto Bello, Fort Chagres, ex-Adams (Plate).AC-FCv12P.11.69 grams, 36 mm.Dark olive-brown XF with tiny hole at top. Tested (XRF) at 50.47% copper and 45.52% zinc (full results on small printout included).Pedigreed to the John Adams collection (plated on p. 152 of his book).
($100-150)