Watch List notes:

Potosi, Bolivia, cob 4 reales, 1680V. S-P39; KM-25; CT-507. 12.50 grams. Two bold dates despite lots of flatness (corrosion minimal, however), spots of dark toning, large edge-crack (looks a little like Pac-man). Recovered from: Piedmont, sunk in 1795 off Cornwall, England
($150-225)