Watch List notes:

Potosi, Bolivia, cob 2 reales, 1671/0E, rare overdate. S-P37b; KM-24. 6.61 grams. Crudely toned and encrusted Fine+ with peripheral flat area but full pillars and cross, three mintmarks, two assayers, clear date with the 1 somewhat offset over the 0. (Estimate: $125 - 200)