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1880 Trade Dollar (Proof Only) Value
FACTS:
All 1880 dated Trade Dollars are proofs so there's no business strike in existance.

Here is a good article on Fake Trade Dollars: Fake Trade Dollars

Specifications:

Designer: William Barber

Diameter: 38.1 millimeters

Metal Content:
Silver - 90%
Copper - 10%

Weight: 27.2 grams

Edge: Reeded

Mint mark: None (for Philadelphia, Pennsylvania) above the D of DOLLAR on the reverse.

Mintage: 0 Proof: 1,987
Please Read Before Buying Trade Dollars! If a date is not listed here then it's fake or counterfeit. 
Fake Trade Dollar Guide


Have numismatic question click here
Date           Mintage      PR12      PR30    PR45     PR55      PR63      PR65

1880 Proof Only 1,987   $977       $1,050   $1,150    $1,380    $2,530   $7,475 
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1880 Trade Dollar Value
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