Early Days Gas Engine & tractor 20 year pin back button

20 year anniversary celebration at the Amador county fair july 25-28 1991. Branch 13 of the E.D.G.E.& T.A. shows picture of a 1899 Fairbanks Morse 22 hp. Owners Matt & Doug Veerkamp of Placerville, Ca. Button measures 2 1/4" and is in perfect condition.