Watch List notes:

Potosi, Bolivia, cob 8 reales, (16)36, assayer not visible, rare.KM-19a; Cal-Type 327.26.41 grams.Small, thick flan with bold full shield (slightly doubled) and nearly full cross, bottom of 3 and half of 6 of date visible, no corrosion, nicely toned, part of edge crude (as made).With card from the salvors, with official presidential stamp on back. From: Concepcion, sunk in 1641 off Hispaniola
($200-300)