Watch List notes:

Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and Lezo / Porto Bello, ex-Adams (plate). AC-PBvl9K. 11.29 grams; 38 mm. Sharply detailed AU- with muted luster throughout, dentillated rims, rated scarce in AC. XRF: 40.74% copper, 52.27% zinc, 5.11% lead. Pedigreed to the John Adams Collection (with his handwritten tag), plated on page 135 of Medallic Portraits of Admiral Vernon (2010), by Adams and Chao.

Estimate: $500 - $1000