Query: Bridges -- Design and construction
Archives Center, National Museum of American History

Finding aid

Archives Center, National Museum of American History

George S. Morison Collection: 1861-1903.

Archives Center, National Museum of American History

Finding aid

Archives Center, National Museum of American History

Frank Masters

Archives Center, National Museum of American History

Acetate film negatives, construction, St. Louis (Missouri)

Archives Center, National Museum of American History

1870s (English and French)

Archives Center, National Museum of American History

Finding aid

Archives of American Gardens

Stamford -- June House

Archives Center, National Museum of American History

Finding aid

Archives Center, National Museum of American History

Finding aid

Archives Center, National Museum of American History

Cummings Structural Concrete Company Records: 1884-1952 and undated

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