The Acme Ballot Box was another effort to prevent voter fraud. Invented around 1880 in Bridgewater Connecticut, the Acme significantly improved on the standard open-slot box. It included a counter activated by the crank lever mechanism. Turning the lever advanced the counter, released the ballot into the locked box, and provided poll overseers with an exact count of the number ballots cast that they could compare to a register of voters.
"Acme Voting Machine," National Museum of American History.