This glass telegraph insulator was collected from the Plowboy site in Shawnee County and donated to the Kansas Historical Society in 2017. The Plowboy site was home to the Kansa, the Potawatomi, and Euro-Americans. At various times, the site contained a farm, a trading post, and a post office with nearby military trails, Mormon routes, a railroad and the California-Oregon trail. The Brookfield company made over 100 types of insulators, all meant to insulate the wires from touching other conductors. Most of these were manufactured in their Brooklyn, New York plant.
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Kansas Historical Society
Brookfield Telegraph Insulator from the Plowboy Site, 14SH372 - 2