Shield Type
Mexico City, Mexico, cob 4 reales, Philip III, assayer not visible (F, pre-1607).S-M12a; KM-37.1; Cal-745.13.87 grams.Broad round flan with good full cross and shield, mostly flat peripheries but with clear (GRA)TIA and diamond ornament plus king's ordinal III, richly toned VF with hairline edge-split and small spot of verdigris.
Estimate: 100-150 USD