Lot of two Potosi, Bolivia, cob 1R of assayer YA (rare), dated 1732 and 1733. S-P45; KM-28a. 5.70 grams total. F-VF with nice toning, both with bold dates and clear assayers (Francisco de Yllana), the 1733 with good cross, the 1732 with stripped hole at edge. (Estimate: $100 - 150)