^Lot 141 MEXICO, Mexico City, cob 4 reales, Philip III, assayer not visible, Grade 4.

MEXICO, Mexico City, cob 4 reales, Philip III, assayer not visible, Grade 4. 8.93 grams. Broad flan but with about 30% of edge lost to corrosion, off-center shield allowing full denomination 4 and most of king's name, most of cross (also off-center), overall a bit more interesting that the typical Grade-4 piece. With original Fisher tag and photo-certificate 87M-137910. Recovered from: Santa Margarita, sunk in 1622 west of Key West, Florida