August 22, 20178 yr Well I ended up getting this old 7" swivel jaw bench vise today at a small local on line auction for $211.00 its at least 200 lbs. and 31" long closed and 13" tall.. its a monster looking vise in person.. it has no makers mark that can be seen... G-ManBart told me it looks like a Prentiss vise.. thanks for all the info Bart !!
August 22, 20178 yr Greetings JT, Are you aware that by.pulling the pin it will allow the rear jaw to pivot. A real handy feature. Yep looks like a Prentiss. Forge on and make beautiful things Jim
March 11, 20197 yr Look on the forward most plane of the vise under the screw and handle. It should read "P V CO" and this would make it a Prentiss Vice Company swiveling rear jaw machinist's vise. Otherwise known as a self-adjusting rear jaw vise. In my research, I've only seen the unique profile of the vise jaws ("U" shaped, arranged horizontally) on a Prentiss vise. There are no visible markings on my vise other that unreserved the screw handle. Dave
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