I was recently given this object when my grandpa helped clean out an old concrete signal house for the 940’s air compressor. (Learn more HERE)
It is about an inch and a half by an inch. As I said, it was found in an old concrete signal building, (in use from the 70’s to the 90’s I believe) screwed onto a board. It appears to be made of a compressed rubber material. The lettering is also stamped, not raised or printed. That is all I really know.
If anyone has any ideas of what this was used for that would be great! IWho knows, it might not even be railroad related.[#oops] Thanks!
Acela