I had a student bring this in to me today and I'd like to find out what it is. He found it in the attic of a house. The brass piece screws on to cover the part sticking up in the middle. I'm guessing a telegraph relay, but that's just a guess.
Laura Jenkins Instructor NECA/IBEW Electrical Training Center
[This message has been edited by Webmaster (edited 05-25-2005).]
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