Watch List notes:

Mexico City, Mexico, cob 4 reales "greenie" (encrusted as found), Philip IV, assayer not visible. KM-38. 14.55 grams. Round flan, seems solid but surfaces all coated with encrustation ranging from white and green on reverse to black and white on obverse. Recovered from: Concepcion, sunk in 1641 off Hispaniola
($125-200)