Watch List notes:

BOLIVIA, Potosí, cob 8 reales, 1664 E. S-P37a; KM-21; Cal-1528. 16.43 grams. Typically thin from corrosion but with nice toning in crevices inside well-centered full pillars-and-waves and cross-lions-castles, two dates and mintmarks, three assayers. Recovered from: Consolación, sunk in 1681 off Santa Clara Island, Ecuador

Estimate: $200 - $300