Watch List notes:

Potosi, Bolivia, cob 4 reales, 1754 C, ex-Rosenheim, ex-Ugaz. S-P53; KM-39; Cal-409. 12.40 grams. Chunky flan in an odd, almost heart-like shape (possibly with small piece broken from edge in its time), very richly toned, with bold date next to full right pillar, nearly full cross with bold mintmark to left, AXF with peripheral surface roughness per the era. Pedigreed to the Arturo Rosenheim and Jorge Ugaz collections.
($200-300)