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National Aero Coast Patrol Commn. Curtiss Hydroaeroplane..., between 1913 and 1917. Creator: Harris & Ewing.
 
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2-917-495
G.N. Press Car, between 1913 and 1918. Creator: Harris & Ewing.
 
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2-917-512
G.N. Press Car, between 1913 and 1918. Creator: Harris & Ewing.
 
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2-917-513
G.N. Press Car, between 1913 and 1918. Creator: Harris & Ewing.
 
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2-917-514
Captain Baldwin, between 1911 and 1920. Creator: Harris & Ewing.
 
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2-917-547
Telephone operators, between 1914 and 1917. Creator: Harris & Ewing.
 
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2-917-578
Man on horse in woods, between 1914 and 1917. Creator: Harris & Ewing.
 
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2-917-579
Violano Virtuoso, between 1914 and 1917. Creator: Harris & Ewing.
 
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2-917-604
Violano Virtuoso, between 1914 and 1917. Creator: Harris & Ewing.
 
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2-917-605
Violano Virtuoso, between 1914 and 1917. Creator: Harris & Ewing.
 
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2-917-606
Brick Yard near Mount Vernon, Va., between 1910 and 1917. Creator: Harris & Ewing.
 
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2-917-696
Bobroff voting machine being considered for use in house, between 1910 and 1917. Creator: Harris & Ewing.
 
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2-917-698
Unidentified Machine Model, between 1914 and 1918. Creator: Harris & Ewing.
 
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2-917-732
Unidentified Machine Model, between 1914 and 1918. Creator: Harris & Ewing.
 
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2-917-734
Walter S. Gifford, between 1914 and 1918. Creator: Harris & Ewing.
 
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2-917-751
Walter S. Gifford, between 1914 and 1918. Creator: Harris & Ewing.
 
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2-917-752
Armored car, between 1916 and 1918. Creator: Harris & Ewing.
 
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2-917-783
Seaplane, demonstration, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-917-878
Long rag washer, between 1912 and 1917. Creator: Harris & Ewing.
 
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2-917-882
Long rag washer, between 1912 and 1917. Creator: Harris & Ewing.
 
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2-917-884
Champ Clark, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-917-891
H & E photographer, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-917-915
Cartouches trouvées les 25 et 26 Août, 1914..., between 1910 and 1920. Creator: Harris & Ewing.
 
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2-917-916
Radio towers, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-917-917
General view left side with gun in firing position, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-917-953
Capt. Buzzcott's army kitchen, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-917-985
Riggs Bldg. Post Office, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-020
Food Garden Commission, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-035
Miss Josephine Patton; Mrs. C.C. Marsh; Mrs. George D. Widener, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-052
Mrs. E. Seawell & Mrs. H. Rogers, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-053
Mrs. Evans Seawell & Mrs. Henry Rogers, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-054
Mrs. H.H. Rogers, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-055
Mrs. Ball and group at Hamilton Hotel, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-064
Russell T. Edward, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-121
Evelyn Moran, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-128
Evelyn Moran, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-129
Training Division, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-166
Mrs. Chester Bolton, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-180
Model airplane, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-190
Radio, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-191
Radio, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-192
Radio, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-193
Radio, 1919. Creator: Harris & Ewing.
 
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2-918-194
Home Economics Section, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-199
Home Economics Section, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-200
P.O. Dept., between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-210
P.O. Dept., between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-211
P.O. Dept., between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-212
P.O. Dept., between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-213
Bureau of Mines, Dept. of Int., between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-227
Interior Dept. - Bureau of Mines, between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-228
Bureau of Mines Interior Dept., between 1910 and 1920. Creator: Harris & Ewing.
 
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2-918-229
Bureau of Mines, low temperature laboratories, between 1905 and 1945. Creator: Harris & Ewing.
 
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2-918-258
Curtiss Airplane - Tests of Curtiss Plane For Army, General Views, 1912. Creator: Harris & Ewing.
 
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2-918-285
Curtiss Airplane - Tests of Curtiss Plane For Army, General Views, 1912. Creator: Harris & Ewing.
 
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2-918-286
Curtiss Airplane - J.A.D. McCurdy, Aviator, 1912. Creator: Harris & Ewing.
 
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2-918-287
Curtiss Airplane - Tests of Curtiss Plane For Army, 1912. Creator: Harris & Ewing.
 
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2-918-290
Anthony Jannus, Flights And Tests of Rex Smith Plane Flown By Jannus - Tests, 1912. Creator: Harris & Ewing.
 
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2-918-292
Anthony Jannus - Flights And Tests of Rex Smith Plane Flown By Jannus. The Plane, 1912. Creator: Harris & Ewing.
 
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2-918-297
Anthony Jannus - Flights And Tests of Rex Smith Plane Flown By Jannus. The Plane, 1912. Creator: Harris & Ewing.
 
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2-918-298
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