Here's one place that apparently lists it for sale, though it says it is unavailable right now. Looks like the same vise, except that it now has replaceable jaws. Mine doesn't, I don't think. But they're still over 50% "serrated", or checkered........ after all these years of hard usage.

https://www.trick-tools.com/504-12M3-Columbian-Machinist-Bench-Vise-10104_7458

SRH



May God bless America and those who defend her.