Watch List notes:

Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon / Porto Bello, ex-Adams (plate). AC-PBv32X. 14.08 grams; 37 mm. Matte AU- with choice details and satin-smooth surfaces, noticeably high rims. XRF: 42.97% copper, 51.05% zinc, 4.31% lead. Pedigreed to the John Adams Collection (with his handwritten tag), plated on page 71 of Medallic Portraits of Admiral Vernon (2010), by Adams and Chao.

Estimate: $500 - $1000