Argentina
Rio de la Plata 1/2 Real 1815 PTS-F MS64, Potosi mint, KM1.2, CJ-17. Choice Mint State with subdued mint luster and most attractive for this issue, the detail on the sunface being particularly charming. Currently tied with two other coins as the finest certified by NGC, a little jewel that is sure to elicit strong attention.
Estimate: 1500-2000 USD