The 1918 US Lincoln Illinois Commemorative Silver Half Dollar is a valuable coin with a composition of 90% silver and a denomination of 50 cents. Minted in Philadelphia, this business strike coin features a commemorative design related to Abraham Lincoln and the state of Illinois. As an uncertified piece from 1918, this coin holds historical significance for collectors interested in US commemorative coins. The photos provided offer a clear view of this rare and unique piece of American numismatic history.