Great Britain, copper alloy Admiral Vernon medal, 1741, Vernon and Ogle / Cartagena, ex-Adams. AC-CAvo2B. 11.53 grams; 38 mm. Slightly dark XF in a nice, even, olive brown color with traces of muted luster on reverse fields. XRF: 41.63% copper, 50.68% zinc, 6.60% lead. Pedigreed to the John Adams Collection (with his handwritten tag).
Estimate: 200 - 300 USD