Watch List notes:

Potosi, Bolivia, cob 1 real, 1650/49O, extremely rare. S-P35; KM-unl.; CT-unl. 3.50 grams. Broad flan with nice full shield and cross, full P-O, most of date with overdate certain under magnification (first example we've seen), Fine+ with uneven toning and areas of dark-green encrustation near edge.

Estimate: $125