What This Coin Looks Like (Obverse, Reverse, Mint Mark Location, Special Features, etc.): All 1884 Liberty Head $20 Gold Double Eagles in Philadelphia were struck as proof coins. Only 71 were produced and they are extremely rare and valuable. Source of example image is courtesy of Heritage Auction Galleries.
Coin Value Chart: Typical Coin Prices, Values and Worth in USD based on Grade/Condition. Numismatic portion of the values last updated February 2026, precious metal portion of the values is updated live!