Watch List notes:

Potosi, Bolivia, cob 8 reales, 1653E, dot-PH-dot at top. S-P37a; KM-21; CT-437. 21.69 grams. Nice tops of pillars with bold PH, full but doubled cross, spotty toning, light to moderate surface corrosion, two dates including full four-digit date below cross. With Marex tag #91-8R-0386. Maravillas, sunk in 1656 off Grand Bahama Island

Estimate: $200-300