Watch List notes:

Mexico City, Mexico, cob 4 reales, Philip III, assayer not visible, Grade 3.7.72 grams.Heavily corroded and featureless shield side yet the protected cross side (covered in black oxidation) has some strong detail where it wasn't weakly struck, small edge-crack as made.With original Fisher tag and photo-certificate #1609.From: Santa Margarita, sunk in 1622 west of Key West, Florida
($350-500)