Watch List notes:

Potosi, Bolivia, cob 8 reales, 1672 E, NGC AU 55, finest known in NGC census. S-P37b; KM-26; Cal-703. 27.00 grams. Bold full pillars and nice (but slightly off-center) full cross-lions-castles, two dates and assayers, three mintmarks, lovely toned and near-pristine surfaces, edge-split.

Estimate: $300 - $450