original c. 1950's american vintage industrial pressed and folded steel factory machine shop tool box fabricated by or for the thorsen mfg. co., oakland, ca. the specialty tool storage box contains a single, fully concealed shallow compartment with hinged lid or cover. the patented chrome plated steel hasp is original and fully functional. the lightweight portable storage box was salvaged from a chicago area tool & die factory. measures approximately 19 1/4 x 6 1/4 x 2 inches.