Watch List notes:

Potosi, Bolivia, cob 8 reales, 167(?)E. 19.75 grams. Decent full cross with good castles but heavily corroded all over, with patchy dark toning. Pedigreed to the Thomas Gray collection and formerly displayed at the ANA Money Museum's "Treasures of the Deep" exhibit (2014-15), with photo-certificate. Recovered from: Consolacion, sunk in 1681 off Santa Clara Island, Ecuador

Estimate: $90 - 135