^Lot 166 Mexico City, Mexico, cob 4 reales, Philip III, assayer D/F (ca. 1618), NGC Shipwreck Effect / Sao Jo

Mexico City, Mexico, cob 4 reales, Philip III, assayer D/F (ca. 1618), NGC Shipwreck Effect / Sao Jose. S-M18; KM-unl (37.2 for type); Cal-762. Most of cross and shield despite flat areas, clear D/F and full mintmark oM with partially visible date above it (looks like 1619/8/7, a possibility for this over-assayer), crack and minor corrosion on edge. NGC #1973933-042 (Sao Jose Shipwreck Label). Recovered from: Sao Jose, sunk in 1622 off Mozambique, east of Africa