Watch List notes:

Potosi, Bolivia, cob 1 real, 1652 E, denomination 2 error, very rare, ex-Mastalir (Plate Coin). S-P36; KM-12b; Cal-747. 3.65 grams. The weight, size of cross, shield and flan all indicate this being a 1 real, but erroneously denominated as 2 in error; it is listed in Mastalir as a 2 reales. Bold XF with minimal surface corrosion, partial shield and cross, full king's ordinal visible. Pedigreed to the Robert Mastalir collection, plated on page 256 of his 2021 book The Great Transition at the Potosi Mint 1649-1652 / The 1649-1652 Crowned Shield Coinage and the Countermarks of 1652 / Part A: The 1649-1652 Crowned Shield Coinage. From: Capitana, sunk in 1654 off Chanduy, Ecuador
($150-225)