Watch List notes:

Potosi, Bolivia, cob 4 reales, 1617 M, Grade 2. S-P19; KM-9; Cal-773. 11.31 grams. Full date (tag and certificate say only 161X) preceded by A (for ANO) outside of good full cross, the shield also full with clear M to left, king's ordinal III in legend, broad flan but thin from corrosion, toned in crevices. With Fisher tag and certificate 85A-186951, pedigreed to the RWB Reference Collection of Atocha dated cobs. Recovered from: Atocha, sunk in 1622 west of Key West, Florida


Estimate: 1250 - 2000 USD