85% reverse missing clad layer, with just a small piece of manganese clad layer still remaining on the reverse side. The coin is copper in the missing clad layer part of the coin, and manganese on the other. This is a rare error type, and is probably only the 2nd partial missing clad layer Sacagawea dollar we have ever had in stock (by comparison we've probably handled a dozen or more full missing clad layer Sacagaweas!) This is also the most appealing example we've ever had, as it shows a nice contrast between the missing part of the clad layer and the remaining part.
PCGS MS-64 Red/Brown