Brazil
Afonso VI countermarked revalidation 250 Reis ND (1663) VF35 NGC, KM33.3, Gomes-42.07. 11.10gm. Crowned "250" countermark (XF Standard) upon Porto mint, Portugal 200 Reis (½ Cruzado) of João IV (1640-1656), applied upon these coins per law of March 22, 1663 (and later per edict of July 7, 1663 in Brazil) to raise their value by 25%. Deep gunmetal tone.
https://coins.ha.com/itm/brazil/brazil-afonso-vi-countermarked-revalidation-250-reis-nd-1663-vf35-ngc-/a/61162-99129.s?type=CoinArchives61162
HID02906262019
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Estimate: 300-500 USD