Watch List notes:

Mexico City, Mexico, cob 1 real, 1657/6 (P), very rare. S-M19; KM-unl; Cal-unl. 1.45 grams. Thin from corrosion but with full cross and partial yet bold shield and bottom half of clear 57/6 of date, rather early for the Fleet but certified as found there by known diver Rich Van Zyl. With photo-certificate. From: Spanish 1715 Fleet, east coast of Florida
($100-150)