Thanks VA I'm stoked to not only have one but 2 of these unicorns! The missing lock wrench on the black one will probably be near impossible to find, but the blue one is about 85% condition, has the wrench, a couple chips but no breaks.
So I have a beater and a show queen. Although this repair is at least 25 years old, I believe the gentleman said he retired from Goodyear in the late 90s and been in use in his shop since...i think it's fine.
Here's a pic for Smitty...its hard to photograph but these vises aren't just squares, they taper towards the rear, instead of a step in the side. Not shown, the rear of swivel jaw has the taper too. So that is a unique part.