These are new Craftsman/Columbian Jaws 4 1/2"Wide that fits  Craftsman & Columbian vises. Since Wilton discontinued them, these were originally 6 1/2" jaws that were cut to 4 1/2". They are reversible measuring 4 1/2" Wide, 3/4" High, 1/2" Thick with 2 1/2" C-C on the mounting screw holes. The holes are offset, 1/4" center of hole to bottom.  They are stamped (6" REVERSIBLE JAW) on the top.. If in doubt, ask me. Shipping will be to the 50 states only. Thanks for looking.