Brazil
Jose I gold 6400 Reis 1756-B MS64 NGC, Bahia mint, KM172.1, LMB-O386. A delightful near-Gem of the date, with impressively luminous surfaces and very few marks of visual significance. Likely a shipwreck find, and preserved abnormally well as such, with remnants of russet-colored debris visible around the outer dentilation on both sides.
Estimate: 1500-2000 USD