Lot of five Potosi, Bolivia, cob 1R of Philip II through Philip IV, assayers R (2), B/L, FR and O. 16.30 grams total. A rather interesting lot (all toned Fine or better with good crosses and shields and clear assayers), as each item has some special value, including R (Rincon, first issue of the mint) to right and left, assayer B over L (scarce), assayer FR (scarce, also on a small flan), and assayer O with I-O over I to right (first example we have seen). SEE INTERNET FOR PHOTO. (Estimate: $250 - 375)