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Army, U.S, Capt. - Renwick with Army Truck, 1917. Creator: Harris & Ewing.
 
Army, U.S, Hospital Car, 1917. Creator: Harris & Ewing.
 
Army, U.S, Hospital Car - Interior, 1917. Creator: Harris & Ewing.
 
Army, U.S. Armored Car, 1916. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing.
 
Army, U.S. Field Buzzer, 1915. Creator: Harris & Ewing.
 
Army, U.S. Field Buzzer, 1915. Creator: Harris & Ewing.
 
Army, U.S. Field Buzzer, 1915. Creator: Harris & Ewing.
 
Army, U.S. Machine Gun Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Machine Gun Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Machine Gun Tests, 1918.  Creator: Harris & Ewing.
 
Army, U.S. Machine Gun Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Machine Gun Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Machine Gun Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Machine Gun Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Machine Gun Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Motor Truck Inspection, 1917. Creator: Harris & Ewing.
 
Army, U.S. Rifle Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Rifle Tests, 1918. Creator: Harris & Ewing.
 
Army, U.S. Rifle Tests, 1918. Creator: Harris & Ewing.
 
T. Aud in Life Saving Suit, 1916. Creator: Harris & Ewing.
 
Balloons - Capt. Thomas S. Baldwin, N.A., Who Built Dirigible Balloon..., 1914. Creator: Harris & Ewing.
 
Maj. Gen. George Barnett, Commandant, U.S.M.C. Marine Corps Rifle Range; Inspecting..., 1917. Creator: Harris & Ewing.
 
Baseball, Professional - Score Board; Star Building, 1917. Creator: Harris & Ewing.
 
Brigadier General William Herbert Bixby with Col. William T. Rossell, 1914. Creator: Harris & Ewing.
 
Brigadier General William Herbert Bixby with Col. William T. Rossell, 1914. Creator: Harris & Ewing.
 
Brigadier General William Herbert Bixby with Col. William T. Rossell, 1914. Creator: Harris & Ewing.
 
Brigadier General William Herbert Bixby with Col. William T. Rossell, 1914. Creator: Harris & Ewing.
 
Brigadier General William Herbert Bixby, US Army, Chief of Engineers, U.S.S. Maine, 1914. Creator: Harris & Ewing.
 
The Blind, Interiors of Library - Institute of The Blind, 1912. Creator: Harris & Ewing.
 
The Blind, Interiors of Library - Institute of The Blind, 1912. Creator: Harris & Ewing.
 
Rupert Blue, Surgeon General, Public Health Service, 1914. Creator: Harris & Ewing.
 
Rupert Blue, Surgeon General, Public Health Service, 1914. Creator: Harris & Ewing.
 
Rupert Blue, Surgeon General, Public Health Service, 1914. Creator: Harris & Ewing.
 
Bobroff Voting Machine - Being Considered For Use In House, Standing Right To Left: Reps..., 1917. Creator: Harris & Ewing.
 
Wrisley Brown, Attorney - Riding, 1914. Creator: Harris & Ewing.
 
Wrisley Brown, Attorney - Riding, 1914. Creator: Harris & Ewing.
 
Wrisley Brown, Attorney - Riding, 1914. Creator: Harris & Ewing.
 
Wrisley Brown, Attorney - Riding, 1914. Creator: Harris & Ewing.
 
Wrisley Brown, Attorney - Riding, 1914. Creator: Harris & Ewing.
 
Wrisley Brown, Attorney - Riding, 1914. Creator: Harris & Ewing.