Watch List notes:

Cartagena, Colombia, cob 1 real, Philip IV, assayer E below mintmark RN to left, denomination I to right (1626-30), rare. Restrepo-M22.6; S-C3; KM-A5. 2.98 grams. Full and well-detailed shield below most of crown, full RN-E to left, bold but off-center cross, deeply toned all over, light surface corrosion. With generic tag from salvagers. Recovered from: Concepcion, sunk in 1641 off Hispaniola

Estimate: $200-300