Skematic plot showing history of voting equipment vendors, 1890 to current
Skematic plot shows the history of voting equipment vendors, from 1890 to current. Dates of operation shown, with the type of voting equipment produced or marketed. Connections between vendors are show when one organization is bought out or consumed by another vendor. Linage of different voting equipment types can be traced. Each poster individually plotted with each order. Plots are approximately 4′ x 3′.