Watch List notes:

Potosi, Bolivia, cob 8 reales, (1617) M, Grade 3. S-P19; KM-10; Cal-921. 22.26 grams. Broad flan with good full shield and cross but tangential part of edge lost to corrosion, full P-M. With original Fisher tag and certificate 85A-146098, plus "Treasures of the Sea" (Delaware) exhibit flyers. From: Atocha, sunk in 1622 west of Key West, Florida
($350-500)