Here is my Kraeuter "THE VICTOR"
That's a beautiful example, Fred, with a lot of nickel plating remaining. I posted mine - not nearly as nice, and oddly with no Kraeuter stamping on the dynamic jaw, in the Bonney thread a few years ago, linked
here.
This alligator wrench is often confused with a similar looking, and earlier patented model, the Elgin adjustable alligator wrench, which I included in the last three photos. It has an earlier patent date - #
584,019, issued and marked June 8, 1897, and was evidently manufactured in the late 1890s - early 1900s.
The earliest Elgin had a loop handle. Your model actually shows the type of handle that was later ingeniously provisioned with a round die holder for inserting dies for using the same tool as a die stock, which was patented (809,905) on June 9, 1906.
@Ayrhead has a terrific Elgin set, with the extra dies, not in the wooden box, but in the even rarer leatherette pouch, linked
here.
I've mentioned this before on other threads, but I'll say it again here. The Elgin and THE VICTOR are an interesting exemplar and microcosm of the nascent mechanical hand tools industry. I love the Bonney brand, and its founder and namesake, who moved the company into other hands for the majority of its lifespan, was a notable inventor in his own right, but it's fairly obvious he copied the Elgin to a tee and the USPTO deemed the change in the type of worm gear and movement of the adjusting nut from the perimeter to the middle to be sufficiently novel.
THE VICTOR wasn't the only Elgin also-ran, by the way! Henry Martin, assignor for Whitman & Barnes, patented (670,681 / Mar. 26, 1901) an adjustable alligator in the same shape in which both jaws were dynamic, with a crude mechanism and adjuster in the middle, that W&B marketed as The Bulldog.