Watch List notes:

Mexico City, Mexico, cob 4 reales, Philip IV, assayer P. S-M19; KM-38. 9.85 grams. Somewhat corroded but with bold shield and nearly complete cross. Pedigreed to the Isaac Rudman Numismatic Cabinet, with card from the salvors. From: Concepcion, sunk in 1641 off Hispaniola
($125-200)