Mysterious Etcetera?

[RelicHunter97]

I found this brass piece in a field that used to have two houses on it dating back to the 1700s. It is machine cut and approx. 1" long and the top is hollow while the bottom is broken

 

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[Rasputin]

Looks like maybe the business end of a broken gas valve key.

 

[creskol]

Is the rod portion threaded?

 

[Broken knee]

I agree with Rasputin broken gas valve key.
Broken Knee

 

[RelicHunter97]

Im gonna have to go with gas valve key, thanks! Any ideas how old it may be?