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1878 Trade Dollar (Proof Only) Value
FACTS:
1878 Trade Dollars were minted as proofs only so no business strike examples exist.

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:  900
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

1878 Proof Only 900                            $1,092   $1,207   $3,450   $12,291
CoinHELP! Coin Collector's Resource Web Site
1878 Trade Dollar Value
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