Ecuador
Quito, Ecuador, 1/4 real, 1852GJ, CONSTITUC variety, NGC MS 66+, finest known in NGC census.KM-36.Frosty and brilliant with luster, faint incipient rainbow toning, variety with CONSTITUC in legend (Seppa #11), finest of 26 entries currently in the NGC census and the only one with a "+" designation.
Estimate: 700-1000 USD