Its made of pretty thin tin like material. I don't think it would cut.My guess is for punching various size holes in gasket material or thin leather.
You ain't the only one! I spent a good 15 minutes googling various combinations of collapsible and telescoping tin funnels. It smacks of military to me. WWI. Maybe even earlier. Hiking? Early automotive?It kind of reminds me of the collapsible drinking cups that the cool kids in my scout trip had in their camping equipment back in the 60’s

I think you might have it.Could they be a set of sprue cutters for sand casting? Example
I was not offended?Roger, I meant no disrespect with my post, whatever it is it is very cool. I love finding things like this that someone made to solve a problem.
It kind of reminds me of the collapsible drinking cups that the cool kids in my scout trip had in their camping equipment back in the 60’s. Please let us know if you find out.