Vice identification

[sgrady11]

Well, I thought they were vices, but I'm not sure what to call them. Basically I obtained four when helping cleanout a relatives garage. They are very heavy. It almost seems like there should be another mount or something for them.

Anyone have any ideas?

 

[Davefr]

They're woodworking workbench vises. They bolt up to the understand of the workbench.

 

[sgrady11]

Thanks guys, much appreciated!