The Bobroff voting machine display board, seen here in Wisconsin, was the first electric voting machine used by a legislative body, installed in 1917.
Although it was the first of its kind used anywhere in the United States, other state legislatures quickly had similar devices installed.
The machine recorded a roll call in 11 seconds and developed a photographic record of all votes in 24 seconds.
November 6, 2012 7:19 AM PST
Photo by: Harris & Ewing
| Caption by: James Martin
Conversation powered by Livefyre