Potosi, Bolivia, cob 1/2 real, (1)67(8 or 9), rare denomination as from a wreck. 0.88 grams. Bold monogram and cross, edge a bit thin from corrosion, darkly toned all over. With ROBCAR photo-certificate #MO15091. Recovered from: Consolacion, sunk in 1681 off Santa Clara Island, Ecuador
Estimate: $50-75