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Archival materials (1485)
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Spring (67)
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name
Hammer, William J. (William Joseph), 1858-1934 (electrical engineer) (276)
Mechanical and Civil Engineering, Division of [former name], NMAH, SI. (186)
History of Technology, Division of, NMAH, SI (176)
Bellanca, Giuseppe M. (127)
Greene, Stephen (117)
Lockwood Greene Engineers, Incorporated (117)
Lockwood, Amos (117)
Lockwood-Greene Company (117)
Whitman, David (117)
Garden Club of America (84)
Elisofon, Eliot (81)
Princeton University (81)
Nutt, Arthur (76)
Underwood & Underwood (63)
Electricity and Modern Physics, Division of, NMAH, SI. (62)
Greenleaf, James L. (46)
Olmsted Brothers (43)
Delano & Aldrich (40)
Hutcheson, Martha Brookes (40)
Olmsted, Frederick Law (40)
Platt, Charles A. (Charles Adams) (40)
Pratt, Harold Irving (40)
Delano, William Adams (38)
Babb, Cook & Willard (36)
North Country Garden Club of Long Island (35)
Gorlia, Emile E.O. (33)
Harris, Nancy H. (33)
Baltimore and Ohio Railroad Company (30)
Engineering and Industry, Division of, NMAH, SI. (30)
Garrett, John W. (John Work) (30)
Latrobe, Benj. H. (Benjamin Henry) (30)
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Greensboro (North Carolina) (3)
Horseshoe Curve National Historic Landmark (Pa.) (3)
Japan (3)
London (England) (3)
Massachusetts (3)
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archival repository
Archives Center, National Museum of American History (609)
National Air and Space Museum Archives (597)
Eliot Elisofon Photographic Archives, National Museum of African Art (127)
Archives of American Gardens (103)
Archives of American Art (27)
Anacostia Community Museum Archives (8)
Freer Gallery of Art and Arthur M. Sackler Gallery Archives (8)
Smithsonian Institution Archives (3)
National Anthropological Archives (1)
National Museum of the American Indian (1)
Smithsonian Libraries (1)
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Images (1485)
Query:
engineering
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online_media_type:Images
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Newspaper clippings, miscellaneous
Hummer Collection
Count Zeppelin's balloon [dirigible], Switzerland
Bismarck Bridge
0160 - 0260
Correspondence, Hammer and Samuel P. Langley
Correspondence, Hammer and balloon flight activities
Correspondence, miscellaneous matters relating to aeronautics
Correspondence, Wright lawsuit against Curtiss
Leaflets and brochures, Institute of the Aeronautical Sciences
Handbook of the National Aircraft Collection, Smithsonian Institution
Newspaper clippings, miscellaneous
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