Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and Fort Chagre / Porto Bello, ex-Adams, ex-Chao, ex-Ferrari. AC-FCv5D. 15.92 grams; 40 mm. Solid AU in dark chocolate brown with traces of lighter luster and encrustation in crevices. XRF: 41.92% copper, 50.89% zinc, 5.60% lead. Pedigreed to the John Adams Collection (with his handwritten tag) and to the Fernando Chao and Jorge Ferrari Collections.
Estimate: 300 - 450 USD