Watch List notes:

Potosi, Bolivia, cob 4 reales, 1621T, quadrants of cross transposed, no Grade on certificate (Grade 1), ex-Atocha Research Collection (coin #205). S-P21; KM-9; Cal-780 (as assr P). 11.80 grams. Superb full shield, full but lightly corroded cross with clear bottom half of 21 of date, deeply toned all over, its attractiveness surely the motivator for including it in the famous Atocha Research Collection assembled in 1988. With Fisher tag and special photo-certificate #237735.Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($1,000-$1,500)