Watch List notes:

Argentina (River Plate Provinces), Potosi mint, 1 real, 1815F, large sunface, encapsulated NGC MS 61, ex-Tarapaca / Derman. Extremely choice (deeply struck) sunface design, just a few hairlines keeping it from MS 62 or higher, a two-year issue and the perfect mate to the stellar 1 sol in the next lot (with which it spent years together till now), and note that this 1 real was the only denomination not in the Argentine collection we presented in our Auction #17. Pedigreed to the Tarapaca Collection, acquired from Alberto "Coco" Derman in 1978.

Estimate: $800 - 1200