Hook thing?

[rcumbee64]

Found at an old homesite. It has three hooks.

 

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[creskol]

If I am not mistaken, that is a very early style "tug plate" off of the tug straps that were attached to horse hames.

 

[vhs07]

Are those the remains of hex nuts on it?

 

[rcumbee64]

It does look faintly like it could be hex nuts.

 

[vhs07]

I can see it being a bracket that a spring is attached to, with different hooks to adjust the tension.
But thats just a total guess.