5

I found this part in our LEGO collection, and I'm really curious what it might be, it looks old and says "Pat. pend" on the back. Do you know? Thanks!

Back of the white part says "Pat. pend"

The front has an interesting angle

7

It's a tie plate from the original 4.5V train system, specifically from a "switch point right":

enter image description here

http://www.bricklink.com/v2/catalog/catalogitem.page?P=x879cx1#T=C

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