What This Coin Looks Like (Obverse, Reverse, Mint Mark Location, Special Features, etc.): Some rarer varieties of the 1840-O $5 liberty head gold half eagle have fine reeding on the edge of the coin and a wide rim (used in 1839). This variety is known as the "Broad Mill" variety whereas the normal and more common variety is known as the "Narrow Mill". 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!