United Oil Bath Air Cleaner

Decal says: UNITED OIL BATH AIR CLEANER SERVICE CLEANER DAILY. REMOVE CUP, CLEAN CUP AND BAFFLE. REFILL TO INDICATED OIL LEVEL WITH ENGINE OIL. INSPECT GASKET BEFORE REINSTALLING CUP. COVERED BY ONE OR MORE OF THE FOLLOWING PATENTS: 1951384, 2397825, 2674011, 2201950, 2299663, 277032, 2835338, OTHER PAT. PENDING UNITED AIR CLEANER DIVISION NOVO INDUSTRIAL CORPORATION - CHICAGO, ILL MADE IN CHICAGO, ILLINOIS, U.S.A. - PRINTED IN U.S.A. - TYPE CT