Originally Posted by Moonman:
What type of Allen-Bradley devices do you have for train use?
It has the AB logo on it. I can't tell you which one it would fit in, but it appears to be a removable jumper or connector. Notice the metal ends exhibiting some surface rust.
A relay, fuse holder, circuit breaker? Is there a part # on the other side in the center?
Could it be a wrench to reach a potentiometer on a circuit board?
Brad