Picked up this awesome Walworth for $50. Not a ton on info out there on these vises but it looks like it was made on Congress st in Boston between 1982-1911, which is very cool because my old office building was on the corner of Congress st which is in the financial district of downtown Boston.
Another cool bit on info is that James Walworth introduced steam heat to the United States, installing the first steam heating system into a house in Lowell, MA in the early 1840's. He was also contracted to redo the heating system in the White House in 1853 for president Franklin Pierce
I know open screw vises don't get a ton of love around these parts but the screw on this thing is absolutely massive for it's size. The screw has a diameter of 1 3/8" and I think the vise weighs around 70-75lbs. I have it sitting next to a Reed 104 1/2 which weighs 60lbs and the Walworth is substantially heavier.
Jaws are 4 3/4", they open 8 1/2" and it has a massive 16 3/4" handle which has a threaded end
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