Watch List notes:

Mexico City, Mexico, cob 4 reales, 1637(P), full date (rare). S-M19; KM-38. 11.83 grams. All four digits of date visible despite moderate corrosion all over, also much flatness, yet solid overall, darkly toned. Pedigreed to our Auction #13, with original lot-tag #554. Concepcion, sunk in 1641 off Hispaniola

Estimate: $200-300