2020-D Connecticut Innovation Dollar in BU

The American Innovation $1 Coin representing Connecticut honors the Gerber Variable Scale. While in college, Heinz Joseph Gerber invented a scale that could flow with a curve, expand, contract, and turn a corner. Many consider this scale to be the most revolutionary engineering tool since the slide rule. By the 1950s, the variable scale was one of the most widely used tools for engineers and architects worldwide. Though calculators and computers have replaced it, Gerber’s scale was integral to the scientific advancements of the 20th century.