Original World War 2 chemical industry trade magazine vintage ad for PITTSBURGH PLATE GLASS COMPANY, Pittsburgh, PA.  Columbia Chemical Division.  You Can't Fight a War Without Paper!  Paper and paperboard are wrapping tank and plane parts destined for Africa and Murmansk, Alaska and Guadalcanal, packaging cigarettes, shells, cereals, cartridges, small arms, medicines.  Old 1943 WW2 wartime era propaganda magazine advertisement.  There is a very faint stamp on the bottom page edge.  The ad would display beautifully matted and framed.