Iron item from late 1800s site

[Nick79]

Hi all,
I have found an old cabin with lids patented in 1870s, a couple of old full brass shotgun shells but not much else besides this iron piece. Anyone know what it was for?
Long shot, I know but if anyone recognizes it please let me know. Thanks

 

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[Dfxcobb]

pictures are blurry to me..sorry

 

[firemanphob]

Looks like the metal bracket from a wooden horse hame.

 

[Nick79]

Nailed it, thanks buddy!