Potosi, Bolivia, cob 1 real, 1653E. S-P37a; KM-13; CT-1053. 3.93 grams. Odd shape but with three full dates, full cross and nearly full pillars, toned Fine+ with sediment on fields. Curiously, the 3 in the date between the pillars is oversized compared to the others.
Estimate: $90 - 135