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25c Green and Black

Sold for: $47,500
Estimate: $40,000-$50,000

This is the only recorded example of this stunning error, and it is one of three Beer Stamps to be found with an inverted center (each of the three is unique). This one, which was once in the collection of Edgar L. Green, was the first of the three to be recognized.

Because there has been no public sale of a Beer Stamp Invert and due to their unique status, it is difficult to determine the market price. There is only one other United States Inverted Center that is unique. When that stamp made its last appearance at auction, it realized $120,000.

Photo Courtesy: Spink Shreves Galleries