Inventor of bubble gum (1904–1998). ALS signed “Walter E. Diemer,” one page, 8.5 x 11, June 28, 1994. Letter to an admirer. In part: “My biggest feeling is the satisfaction I get out of having brought pleasure to lots of kids. A noted TV personality said recently one thing he remembers best is the fun he got out of bubble gum and his Flexible Flyer sled.” In fine condition. Accompanied by a photo of Diemer with his creation. RR Auction COA.