Flowing Hair silver dollar, sold at auction “raw” as Gem Brilliant Uncirculated by Stack’s in 1995, upon being closely examined by experts at CAC Grading is certified as Mint State 67.

It’s the only known coin in private hands and sold recently for $900,000. 1879 Four-Dollar Gold Stella: Sold for $840,000, Stack’s Bowers calls this “one of the finest and most desirable ...