intact c. 1940's old industrial mobile factory cart salvaged from a chicago steel supply company. the topless supply cart consists of heavy gauge "slotted" steel angled channel stock with a brushed metal finish. the heavily reinforced custom-built cart contains a multitude of stretchers and cross-bracing for supporting incredibly heavy loads. the hardened black rubber swivel casters remain in excellent working condition. the angled steel was fabricated by the acme steel co., chicago, il. the acme flexible clasp co. was founded in chicago in 1884. in 1899, the company merged with the quincy hardware manufacturing co. of quincy, illinois, a manufacturer of barbed steel staples led by james e. macmurray. the new company, based in chicago, changed its name to the acme steel goods co. in 1907; in 1925, it became acme steel co. by the mid-1930s (during the great depression), acme employed about 1,400 chicago-area residents. a new plant opened in riverdale, illinois, in 1918; by the end of the 1950s, when annual sales of well over $100 million placed acme among the top 300 industrial corporations in the united states, the move from chicago to riverdale was complete. in 1964, acme merged with the interlake iron corp., a cleveland-based company that owned plants in chicago, to form the interlake steel corp. in the mid-1970s, as its annual sales approached $700 million, interlake had 3,500 workers in the chicago area. a new acme spun off from interlake in 1986. the company had trouble staying afloat and employed only about 1,200 local residents by the end of the 1990s, a number that fell as a phased shutdown was begun in 2001. in 2002, the international steel group, organized by wl ross & co. llc, bought the shuttered and bankrupt acme steel and re-opened it as isg riverdale inc., a sheet minimill employing about 200 workers. the cart measures 36 1/2 x 24 1/2 x 22 inches.