Potosi, Bolivia, cob 4 reales, 1674E. S-P37b; KM-25; CT-499. 11.77 grams. Choice full cross-lions-castles and pillars-and-waves, parts of all three dates, surface corrosion but darkly contrasting toning, edge-crack. Consolacion, sunk in 1681 off Santa Clara Island, Ecuador
Estimate: $200-300