Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip II, assayer C below erasure, very rare. S-P5; KM-5.1; CT-136 (under La Plata). 25.19 grams. Mostly solid specimen (just some loss on about 30% of the edge) with full and clear shield and cross and much legend, the all-important P-erasure-C very clear, light but uneven toning, numismatically popular issue that was once attributed to La Plata. Recovered from: Unidentified ca.-1590 wreck off the Yucatan peninsula of Mexico

Estimate: $700 - 1000