Watch List notes:

Spain (mint uncertain), cob 4 reales, Philip III, assayer not visible, Grade 1. 10.43 grams. Good full shield with bold denomination IIII, most of crown and king's name, corroded cross (legend rotated 90 degrees clockwise on that side), partially toned, unusual type for this wreck. With Fisher photo-certificate #3182 (attributed to Segovia mint). Santa Margarita, sunk in 1622 west of Key West, Florida

Estimate: $350-500