David Hall: The 1918 Walking Liberty half dollar is surprising tough to locate in circulated grades. Lower examples are actually quite scarce. Mint state examples are very scarce and Gem MS65 or better specimens are rare. In Gem condition, the 1918 is definitely rarer than the 1916 and 1917. It is about a little rarer than the and both the 1918 and 1920 are not nearly as rare as the 1919 and 1921. Like most Philadelphia issues, the 1918 is usually well struck. Gems can have satiny white luster or be toned in avrying degrees.