Great Britain, copper alloy Admiral Vernon medal, 1739, Vernon and Brown / Porto Bello, ex-Adams, ex-Chao, ex-Ferrari. AC-PBvb9N. 10.69 grams; 38 mm. Super contrast from choice strike and bright, brassy, lustrous fields, fully UNC and in fact far better than the AC plate on an "undersized flan" (the present piece having been acquired in 2012, two years after publication), also scarce. XRF: 38.43% copper, 53.93% zinc, 5.78% lead. Pedigreed to the John Adams Collection (with his handwritten tag) and to the Fernando Chao and Jorge Ferrari Collections.
Estimate: 500 - 1000 USD