I finally completed my Kant Slip plier collection, by landing this one a couple of weeks ago. It doesn't look other Kant Slip pliers, as it does not have the graceful
S shape. Nor does it seem to function as smoothly either. The whole claim to fame for this tool is that the jaw halves actually push off one another, thus no strain is placed on the pivot bolt. To adjust for different size objects, you have to swing the cam lug on the backside into or out of position.



On the backside, there is a list of three different patent numbers. None of them actually resemble this tool. Instead, patent number 1,873,805 from 1932 seems to best apply:

I also see that the tool was marked as having been made in Chicago, instead of Baraboo, Wisconsin like earlier Kant-Slip pliers