Vintage Interstate Precision Products Corp. Model C-4 vacuum unit that runs. Great mid-century piece with all-metal body, latch, and switch. 70" flexible hose + metal ends (approx addl' 16"). 2-piece metal hose extensions that together is 35" long. Dimensions: 20" long X 8.5" wide X 11" high. Molded label on bottom references a date of July 13, 1951.
There is a hole in the inner basket/filter and missing one of the "slider" feet and the "flap" piece that covers the hole where the hose is inserted.