Watch List notes:

Potosi, Bolivia, cob 8 reales, 1679V, with weight-adjustment plug for circulation in New York City (very rare). S-P39; KM-26; CT-359. 24.70 grams. The Feversham remains the only source for cobs such as this one with obvious silver plug shot through the interior to bring up the coin's weight to standard, this specimen also quite worn from circulation after plugging, also a bit stained but not corroded, double-struck but with all three assayers at least partially visible, split in edge. With generic certificate. Feversham, sunk in 1711 off Nova Scotia, Canada

Estimate: $600-900