Vintage 115V IBM Wall Mount Electromagnetic Signal Fire Alarm Bell - WORKS

Description

Offered is a vintage IBM wall mount fire or alarm bell
. It measures approximately 12" in diameter. According to the small metal medallion in the center, it's rated 115V-60  and 100 ohms. It is too faded/worn to read the part number or the rest of the info. I plugged it in using a power strip and it works. It was not extremely loud, but most likely it simply requires a little adjustment or lubrication.
The bell is NOT brass. It is a ferrous metal (magnet sticks to it) and is most likely steel. The cast trim is apparently some alloy (possibly aluminum). It's fairly heavy (weighs approximately 10.5 lbs.).
Please note the broken cast hinge tab (last 4 photos).
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BEFORE
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