You should have bought it!!!Its a Old Weaver Mechanical Jack, There was 2 Major Manufacturers of Mechanical jacks, Walker and Weaver. Although they are very cool to watch and use they normally dont fetch much money from collectors.
Wow that is a cool jack! I would have disasembled it using my teeth as screwdrivers if necessary to make it fit in the Mustang.You should have bought it!!!

what is "not much money", i mean would it be worth driving 400+ miles one way, buying it $125.00, driving back 400+ miles, and then getting it in "working" order. I sure wouldn't use it to pick my '56.........