Unknown lathe tool/attachment, help!

[Fejlong]

Hi everyone!
Got a box of lathe tools and bits the other day, found in it a unknown(to me) lathe(probably) tool/attachment. Please see pictures.
Can anyone help please? I am guessing that is a spring winding attachment, but if it is, I have no idea how to use it. And probably some parts are missing.

Any hint welcome

Thanks,
Daniel

 

[mmcmdl]

Looks like a box tool used in a turret lathe .

 

[4ssss]

That a box cutter for a screw machine

https://www.google.com/search?q=scr...X&ved=0ahUKEwirsKPTxtbbAhVqtlkKHYZwBVMQsAQIWw

 

[kd4gij]

Yep box tool. It is missing the rollers.

 

[chips&more]

It's missing more than the rollers!