Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer not visible, quadrants of cross transposed, Grade 2. KM-10. 20.32 grams. Good cross and shield despite heavy edge corrosion, the "leading edges" of which are darkly toned. With Fisher photo-certificate #8207 (replacement copy). Recovered from: Santa Margarita, sunk in 1622 west of Key West, Florida

Estimate: $300 - 450