Can anyone ID this semi auto rifle bolt?

[photodog]

I got this what I believe is a 9mm semi auto rifle bolt in a box of gun parts at an estate sale. Had a lot of HK stuff and some Uzi stuff, but it isn't an Uzi bolt, looks similar to a Thompson but it isn't. I know it isn't complete since I did find one image of the same bolt on Google image search, but the link went to pic click for a Remington 770. Any help would be appreciated.

 

[Greybeard]

Looks like a bolt from a Standard Manufacturing 1922. Definitely a 22 look at the extractor and rimfire firing pin.

 

[IMDB]

Looks like it could be a bolt from a auto ordnance 1928 Tommy gun in 22lr. Looks to be a full auto bolt too. Might be worth a few bucks since the gun is rare.