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Drawings of the Roof Device. Construction Site Stock Illustration - Illustration of crane, background: 159805041
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Roof Plans: Section "C-C", Roof Plan; Roof Framing Plans: Section "C-C", Section "D-D"; Roof Framing Sections: Cross Section "G-G", Cross Section "H-H" - Fort Washington, Fort Washington Light, Northeast side of Potomac
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