Watch List notes:

Potosi, Bolivia, cob 4 reales, 1738 M. S-P47; KM-30a; Cal-1193. 13.23 grams. Round but chunky flan with full but partially weak cross and pillars (the latter slightly doubled), two dates, three full mintmarks, AU with lightly cleaned surfaces, mostly toned in crevices. Pedigreed to the Jorge Ugaz collection.
($200-300)