hard to find vintage industrial adjustable crank die cart, manufactured by hamilton tool co., hamilton, oh. the portable elevating table or "portelvator" was designed by oscar schilchter with a patent awarded in 1933. the 2500 pound capacity cart retains the original, fully functional spoked cast iron caster wheels. the crank handle is original to the table. the gear box, gears and tenoned screws are in great working condition. salvaged from a detroit tool & die factory. gunship gray enameled finish largely intact. the embossed words "tool room" were hand-applied on the bottom tier (likely by a factory machinist). measures 43 x 38 x 26 1/4 inches.