1 Dollar American Innovation - Iowa

Iowa's entry in the American Innovation dollar series honors the development of the sliced bread machine by Otto Frederick Rohwedder, whose prototype was destroyed in a 1917 fire and took another decade to rebuild before the first commercially sliced loaf was sold by the Chillicothe Baking Company in Missouri in 1928. The connection to Iowa comes through Rohwedder's Davenport roots and his years of development work in the state.

As of this writing, the 2026 issue has not yet been struck.