Help me identify this old "mystery" tool, please.

[Big Bad Dad]

I'm cleaning out my Dad's shed since he passed away. I have a pretty good tool knowledge, but found one that has me stumped. My Dad was into auto mechanics, and taught auto shop at a local high school for many years after his stint in the Army during the Korean era. His Dad was a fire fighter that raised cattle on the side. My other Grandfather was a machinist for the old N&W Railway. So THIS could have come from any of them. It looks like some sort of crimping tool. Anybody know what it may have really been used for?
(Red knife for size reference only)
Thanks

 

[CD1]

My guess, a metal band crimping tool, probably used with a band tightening tool.

 

[Kscardsfan]

Maybe for crimping lead-wire seals on shipping containers, boxcars etc. Might be for banding pallets etc. but most of the ones I’ve seen were bigger than that.