Here's one I have not seen before. Rapid action horn vise with Parker style jaws. Cam lock swivel base. 5-1/4" jaws that opens to 8-1/2" and weights 90 lbs. Dynamic is solid. Anyone seen one before? Needs some work but works like it should.
certainly not the same, but I came across (and bought) a well-made miniature rapid action vise - jaw 1 1/16in (one and one sixteenth)- weight 9oz, maybe an exhibition, sales or patent model (cast (?), nickel plated, fully working) of a different but related vise -- action requires just lift off, then move and the usual tommy-bar and screw take over.
Here seen on a York swivel bullet 'toddler' (2 1/4 in) with Lincoln and Eliz II pennies.

here's the underside to show the somewhat similar tooth design.
I assumed this was an isolated try-out model which never went anywhere and that I'd never see another, but then saw it full-scale in a Manufrance catalogue of 1912.

The catalog states that it's forged iron and available in 3 sizes - jaw 2 1/4in weighs 9lbs, jaw 3 1/4in weighs 17lbs, jaw 4in weighs 30pounds.
Manufrance were based in St Etienne. a major manufacturing center like Pittsburgh or Sheffield, but I think they were more of a distributor (big one, like Sears Roebuck) than maker.
The vise above it, in the catalog, with the dovetail ways is like the Swiss, German (also English) made (eg by Boley) watch/clockmakers type widely available in Europe at the time (and usually v well made)