Can anyone put a time period to this Stirrup?

[mwpullen]

I was clearing some brush on my property about 10 miles from the Choctaw Nation capitol of Tuskahoma in S.E. Oklahoma. While I was cutting a small tree off right at ground level my chainsaw started throwing sparks and I dug this out of the ground. I'm pretty sure it's wrought iron because of the way the edge flaked where it had rusted in a couple of places.








Don't know why it is rotating my images!

I'm hoping someone might be able to put a time period to this for me.

MWP