Weird brass item

[smf399]

Found this at an old site. Definitely brass. Any info would be great.

 

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[NOLA_Ken]

Part of an old gas valve

 

[GaRebel1861]

Part of an old gas valve

First thing that popped in my mind too.

 

[cactusrat]

A bleed off valve of some sort. Made of brass would mean it is not for high pressure. With the needle valve stem, it was capable of fine control.