Hey Cambria,
I thought at first it was a hinge. On closer inspection, it appears to be a throw bolt. I think it's from:
"Factory: Kearney Foundry & Hinge Factory/ B. F. Levering’s Hinge Factory
Location: Tool Factory building, east of oatmeal mill
Years of operation:
Jan 25, 1890 – Levering patented a door hinge. Will manufacture it here. Asked the city
for $1,400
Feb. 5, 1890 – Work has started on their new buildings 3 blocks east
of oatmeal mill. 24x50 two-story building, 24x51 one-story building, 1⁄4 acre of
sheds. Purchased tool factory to use for light work and finishing.
Apr. 22, 1890 - Proprietor, F. B. Levering; Ready about May 1; large addition built on
tool factory which was built last year. Will also do brass castings and heavy cast
iron work.
Apr. 24, 1890 – Work was progressing
May 10, 1890 – opened
Jan 15, 1891 – Employee of Great Western Hinge Works tried to break into a safe at
Kuhn’s foundry
March 6, 1891 – Expects to begin work in earnest
May 9, 1891 – someone in town negotiating with Great Western Hinge Works
May 18, 1891 – Hinge works to combine with Phillips & Gillette foundry of Fairfield.
Hinge works owners were Whitaker Bros. & Milligan June 1891 – Levering as still in town
Aug. 21, 1895 – Still in town"
http://www.oldcottonmill.com/Research/kearney_boom_businesses/hinge_factory.pdf
