Watch List notes:

Potosi, Bolivia, cob 8 reales, 1652 E, with crowned-F (Mastalir Fa2-x) countermark on cross, very rare, ex-Christie's, Mastalir Plate. S-P36; KM-19b; Cal-1492. 27.15 grams. Choice specimen, beautifully toned, no corrosion, with well-detailed full shield and cross, full P-E to left and 8-E to right, also full crown and bold full 16 of date, the countermark (bottom half bold) unfortunately punched over the last two digits of date but die details prove it's 1652 (which is very rare in and of itself), this countermark rarely seen on the cross side (only seven known), desirable auction pedigree. Pedigreed to the Roberto Mastalir Collection of Countermarked Potosi Cobs, Plate Coin (page 156 in Part A and page 343 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), and pedigreed to the original Christie's Maravillas auction of May 1992 (lot 51). From: Maravillas, sunk in 1656 off Grand Bahama Island
($750-1100)