I have about 120 of these contact switches. I don't know what their intended purpose is/was, but I can see some applications like a massive old-school cam-driven light controller, or perhaps alarm switches with an added plunger.
A cam controller would have a cam for each switch, mounted on a rotating shaft. High spots on each cam would close each switch according to its cam shape. Seems like it could be a cool 3D printed project.
I see that similar contacts without the bend are used in pinball machines.
These contacts are about an inch in each dimension, with a pair of mounting holes. No idea about the contact ratings.
Yeah, I know that it would be much simpler with a micro, but there's something about a mechanism that's just cool.