Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer T, quadrants of cross and upper half of shield transposed, mintmark "q" (retrograde P), Grade 2 ("16 points"), with hand-signed certificate from 1975. S-P21; KM-10; Cal-Type 165. 22.75 grams. Full but lightly corroded shield and cross with multiple transpositions, 62 of date visible, toned around edge. With 1975 photo-certificate 1970 (Cape Coral Bank) hand-signed by Mel Fisher and others (tag missing). From: Atocha, sunk in 1622 west of Key West, Florida
($600-900)