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Great Britain, silver-plated copper-zinc Admiral Vernon medal, 1739, Porto Bello, ex-Adams (Plate).

Currency:USD Category:Coins & Paper Money / Exonumia - Medals Start Price:280.00 USD Estimated At:350.00 - 500.00 USD
Great Britain, silver-plated copper-zinc Admiral Vernon medal, 1739, Porto Bello, ex-Adams (Plate).
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This item SOLD at 2021 May 08 @ 18:41UTC-4 : AST/EDT
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Great Britain, silver-plated copper-zinc Admiral Vernon medal, 1739, Porto Bello, ex-Adams (Plate). AC-PBvi5E. 15.15 grams, 40 mm. Choice AU+ with excellent plating, lustrous and well detailed, traces of dark encrustation in crevices of some of the fortresses, specific gravity of about 8.3, also tested (XRF) at 47.47% copper and 46.43% zinc with 3.16% silver from the plating (full results on small printout included). Pedigreed to the John Adams collection (plated on p. 91 of his book).