Watch List notes:

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-unl.Clear oMD/F, nearly full shield and cross, some flatness but not much corrosion, edge-splits.With original (generic) certificate from the salvors.Recovered from:

Estimate: 125-200 USD