Watch List notes:

Mexico City, Mexico, cob 4 reales, 1620/19(D), rare. S-M18; KM-unl (37.2 for Type). 12.46 grams. Very bold date with clear overdate, bold mintmark, partial shield, choice cross, nice surfaces (no corrosion), well toned. Sao Jose, sunk in 1622 off Mozambique, east of Africa

Estimate: $400-600