Brazil
Jose I gold 6400 Reis 1758-B MS66 NGC, Bahia mint, KM172.1, Russo-388. Gem Uncirculated with fully frosty, essentially unmarked surfaces and a rather impressive strike. A superb representative oft his scarce issue with no examples currently certified higher for the type by NGC and vastly desirable as such.
Estimate: 4000-5000 USD