According To An Old Bigelow & Dowse Co. Catagogue, Your Vise Was Mfgd By Prentiss Vise Co. Of Watertown Ny. The Last Photo, Which Shows The Prentiss Name Also Indicates The Model No., Which Looks Like 23 In Your Picture. The No. 23 Was A Iron Workers Vise, 7" Jaws, Opening To 11" And Weighing A...