Pittsburgh Plate Glass Company · Pittsburgh, PA : The Company · leaf 26
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Pittsburgh Plate Glass Company -- Periodicals · Plate glass · Glass trade -- United States -- Periodicals · Glass manufacture -- United States -- Periodicals · Chemical industry -- United States -- Periodicals · Paint industry and trade -- United States -- Periodicals
Internet Archive · University of Illinois Urbana-Champaign · Public domain (published before 1931). Free to use for anything.
