Concrete products.

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Item Link Original Source
Full view   v.17 Jy-D(1919) University of Illinois at Urbana-Champaign
Full view   v.18-19(1920) University of Illinois at Urbana-Champaign
Full view   v.20(1921) University of Illinois at Urbana-Champaign
Full view   v.21(1921) University of Illinois at Urbana-Champaign
Full view   v.22(1922) University of Illinois at Urbana-Champaign
Full view   v.23(1922) University of Illinois at Urbana-Champaign