I did some serious research and your "Zyliss" was a Swiss made vunder-tool. Probably when Julie Andrews and her troupe of non-yodelling child-spawn came waltzing in over the Alp's, the Swiss just stood there and thought WTF?.
At that point secret Taiwanese agents stole the vise plans and created the version I have

Obviously they thought it so wonderful, thinking the way the Swiss pronounced "Wonder" they misspelled the name and even trade marked it.

Ok, so being curious, I set the thing up for a glamor photo


Somewhere I should have the other red plastic jaw cover. Not sure what the two thingies to the rear are for