The International Harvester Company produced a series of medals, or centennial tokens, to commemorate the anniversary.
This watch fob has a picture of Cyrus Hall McCormick on one side and a picture of the reaper on the other. The dates on the fob refer to the birth and death Cyrus McCormick (1809-1884) and the 100th anniversary of the invention of the mechanical reaper (1831-1931).
Refer to photos for condition.