Watch List notes:

Clump of two Potosi, Bolivia, cob 1R, one shield-type and the other dated 1679C.4.76 grams total.Offset stack, one coin with bold pillars and 7 of date as well as a clear assayer C and part of another on the other side, the shield-type coin with just part of shield and cross showing and with raised area of dark encrustation, otherwise white from cleaning, lightly corroded.With ROBCAR tag and photo-certificate #2020237.Recovered from: Consolacion, sunk in 1681 off Santa Clara Island, Ecuador

Estimate: 100-150 USD