I bought this vise last week. It is marked Athol Mach Co Athol, Mass USA and 712 with a 1912 date on the bottom. I know it is pre 1920 by the markings. The jaws are 4". The interesting thing about it is the handle. it is a fixed handle (does not slide back and forth). In order to operate the vise you need to push the handle screw forward to engage the threads.
I can not find any information on this model. Has anyone seen this handle before? Thanks Phil
I can not find any information on this model. Has anyone seen this handle before? Thanks Phil