Columbian vise parts.
603 Machinists swivel base vise, this vise was so rusty I think it was in a flood LOL. The main handle and screw are missing. The dyanamic and static jaws are pitted but otherwise OK. The "T" jaw inserts are smooth. The main nut looks good and the swivel base and T-bolt look good, the clamping nut works but has serious rust pitting.
203 1/2 combo vise. The pipe jaws are mising. The main nut is bad and I used the swivel base for my 603 1/2. The castings look good and the "T" jaw inserts have a little life left in them. The main screw looks good and the handle is pretty straight. Note the ACME threads on this are 7/8, not 3/4 like
www.viceparts.com shows which probably means this is an earlier one.