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Potosi, Bolivia, cob 8 reales, 1651 O, with 8/P to right, crowned-F (Mastalir Fb2) countermark on sh

Currency:USD Category:Coins & Paper Money / Shipwreck - Silver Coins 1500s-1650s Start Price:240.00 USD Estimated At:300.00 - 450.00 USD
Potosi, Bolivia, cob 8 reales, 1651 O, with 8/P to right, crowned-F (Mastalir Fb2) countermark on sh
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Potosi, Bolivia, cob 8 reales, 1651 O, with 8/P to right, crowned-F (Mastalir Fb2) countermark on shield, Mastalir Plate. S-P35; KM-19b; Cal-1489. 22.10 grams. Dark and somewhat thin from corrosion but with good full shield showing bold countermark near center (with associated edge-crack and slight warp), P-8 to left and what appears to be 8/P-O to right (Mastalir says it is just P-O to right, but the P definitely has a lower loop, making it an 8, in addition to a straight upper left side, hence a P either punched over or modified into an 8, unique in any case), bold king's name and ordinal in legend, full but weaker cross with 51 of date visible (Spanish 5). Pedigreed to the Roberto Mastalir Collection of Countermarked Potosi Cobs, Plate Coin (page 118 in Part A and page 352 in Part B) in his book The Great Transition at the Potosi Mint, 1649-1653, The 1649-1652 Crowned Shield Coinage and the Countermarks of 1652 (2021), with original Herman Moro photo-certificate. Recovered from: Capitana, sunk in 1654 off Chanduy, Ecuador