Not even going to guess..

[IMAUDIGGER]

Adjustable..plated..jointed..
The duckbill piece has to be a clue.

 

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[ANTIQUARIAN]

The Victorians/Edwardians were an ingenious bunch, if there was a need for something to make life easier, they invented it.
Your piece looks to be nickel-plated, which tells me it's from the early 20thc... almost looks to have a clinical/medical use to me.

Dave

 

[ARC]

 

[creskol]

Obstetric Forceps

 

[Fourman110]

I'm thinking something more like a window transform lift.

https://www.worthpoint.com/worthopedia/antique-window-transom-operator-lift-rod-hardware