Potosi, Bolivia, cob 2 reales, 1645TR, very rare. S-P29a; KM-14a; CT-unl. 6.54 grams. Very bold full date (best we've seen) outside choice full cross-and-tressure, full and well-detailed but double-struck shield with bold full assayer TR to left, nicely toned VF+.
Estimate: $700