🔎 UNIDENTIFIED Old clothing iron or something else?

[CAP]

I flipped this out of the ground and said another old flat iron, broken.
Then I cleaned it a little and saw what appears to be electrical terminals on top with the letters THIS BOLT. I looked up first electrical irons but then saw terminals on bottom after further cleaning. Then back to I don’t know what it is or is it missing a bottom that may have held the heating element?

 

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[DizzyDigger]

I don't see anything that makes me think it's a clothes iron.

Truthfully, I'm clueless.

 

[tamrock]

Might be something off an old farm implement of some kind.

 

[Blackfoot58]

Resembles part of a mounting base for an old doorbell transformer.

 

[Mud Hut]

I put this mock-up together, mainly to confirm my suspicion that the hole in the center was a "key hole" slot rather than simply a bolt hole. I still don't know what it is, but I suspect it is railroad related.