u/Major_Currency_3015

I got this vise from my grandpa who passed away late last year. He was a welder and fabricator, but hadn’t used this vise for a couple decades - I’m having trouble locating an equivalent online, none of them on eBay look similar and the main difference is mine has pipe jaws on the underside.

Does anyone know the approximate year/value? And how would you go about cleaning it up (wire wheel/paint?) thanks in advance!