In 1877, the Chief Engraver of U.S. Mint, William Barber replaced the denomination TWENTY D. with TWENTY DOLLARS in the $20 Liberty Head double eagle coins. This last variation of the Liberty double eagle, often labeled Type 3, was by far the largest mintage of the three types of Liberty Head double eagles, with 64,137,477 business strikes and 2,426 proofs minted from 1877 through 1907.
When buying 1877 double eagle coin, look for traces of wear on the hair above Lady Liberty's forehead and behind her ear, on her cheek, and on the coronet. On the reverse, check for wear on the eagle's neck and wing tips, and on the top of the shield.
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 1877 US Gold $20 Double Eagle Gold Coin  US $1,323.98
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 1877 S Gold $20 First Year of Issue Type 3 Double Eagle PCGS MS 61 US $2,495.00
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 1850 ICG XF 45 $20 Gold Lib FIRST RARE DATE US $2,450.00
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 1857 PCGS XF 45 GOLD $20 Lib LOTS OF LUSTER US $2,998.00
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 1858 NGC XF 45 GOLD $20 Lib NO SPOTS US $2,690.00
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 1857 S NGC AU 53 $20 Gold Lib RARE DATE US $3,180.00
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 1850 NGC XF 45 $20 Gold Lib FIRST RARE DATE US $3,490.00
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 1857 S NGC XF 45 RARE $20 GOLD LIBERTY US $2,780.00
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 1877 S $20 GOLD LIBERTY MS61 PCGS US $2,275.00
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