Watch List notes:

Potosi, Bolivia, cob 8 reales, 1654E, dot-PH-dot at top. S-P37a; KM-21; CT-438. 24.09 grams. Choice full inner details with just a few weak spots, very bold full second date 654 below cross, light surface corrosion, toned in crevices. With Marex tag #91-8R-0367. Maravillas, sunk in 1656 off Grand Bahama Island

Estimate: $300-450