The jaws close when handles squeezed. I have looked at ferriers tools endlessly and have not found a match. clinchers and grabbers have similar attributes, but no match.
the slotted jaw looks like some type of nail or brad pulling device, but the opposing jaw is squared and doesn't appear to be able to "help".
I have personally used hog ring pliers and these wouldn't fit the bill.
It looks like when handles compressed something aligned with the grooves and would end up bending in a circular fashion

Much like a sawed off tree part, I am stumped.
I'ld like to thank you all for trying.