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Dinosaur - Mounted Specimen in Smithsonian, 1917. Creator: Harris & Ewing.
 
District of Columbia - Fire Alarm Box And Policeman, 1913. Creator: Harris & Ewing.
 
Sue Dorsey, 1918. Creator: Harris & Ewing.
 
Sue Dorsey, 1918. Creator: Harris & Ewing.
 
William Cushing Edes, Civil Engineer; Chairman, Alaskan Engineering Commission, 1914. Creator: Harris & Ewing.
 
Federal Taxicab Garage, 1914. Creator: Harris & Ewing.
 
Ernest George Fischer, Chief of Instrument Division, Coastal Geodetic Survey, 1914. Creator: Harris & Ewing.
 
Flood Scenes, Dayton, Ohio?, 1913. Creator: Harris & Ewing.
 
Ford Tractor, 1917. Creator: Harris & Ewing.
 
Ford Tractor, 1917. Creator: Harris & Ewing.
 
Fort McHenry, 1914. Creator: Harris & Ewing.
 
Fort McHenry, Cement Gun Used in Building Camp, 1917. Creator: Harris & Ewing.
 
Fort McHenry, Cement Gun Used in Building Camp, 1917. Creator: Harris & Ewing.
 
Dr. Freedman - Children Cured By His Cure, 1913. Creator: Harris & Ewing.
 
Dr. Freedman - Children Cured By His Cure, 1913. Creator: Harris & Ewing.
 
Dr. Freedman - Children Cured By His Cure, 1913. Creator: Harris & Ewing.
 
Miss Elizabeth Funk, 1917. Creator: Harris & Ewing.
 
General view from temporary tower on north end of approach wall looking south..., July 18, 1913. Creator: Harris & Ewing.
 
T.K. Giragossian, 1917.  Creator: Harris & Ewing.
 
Mrs Goff - Dog Show, 1915. Creator: Harris & Ewing.
 
Mrs Goff - Dog Show, 1915. Creator: Harris & Ewing.
 
William Crawford Gorgas, Surgeon General, U.S.A., 1914. Creator: Harris & Ewing.
 
Dr. Cary Travers Grayson, U.S.N. Left, with Press Corr., 1916. Creator: Harris & Ewing.
 
Dr. Cary T. Grayson, U.S.N., 1916. Creator: Harris & Ewing.
 
Sir Wilfred Grenfell M.D., Missionary in Labrador, and Mrs. Grenfell..., 1914. Creator: Harris & Ewing.
 
Gunnison River Project...Canal Under 2000 Feet Water To Uncomphagre [sic] Valley..., 1912. Creator: Harris & Ewing.
 
Hargrave Box Kite, Airplane Target at Fortress Monroe; Modified Hargrave Box Kite, Incorp..., 1917. Creator: Harris & Ewing.
 
Victor George Heiser, Physician, Hygienist, U.S. Public Health..., 1913. Creator: Unknown.
 
House Office Building - Telephone Exchange, 1912. Creator: Harris & Ewing.
 
Hydraulic Excavation, Miraflores - Monitors in Oberation [sic], December 21, 1910. Creator: Harris & Ewing.
 
Hygiene Laboratory, 1913. Creator: Harris & Ewing.
 
Hygiene Laboratory, 1913. Creator: Harris & Ewing.
 
Iceberg, 1914. Creator: Harris & Ewing.
 
Gladys Ingalls, Mrs. Arnold Robertson, Dog Show, 1916. Creator: Harris & Ewing.
 
Gladys Ingalls, Mrs. Arnold Robertson, Dog Show, 1916. Creator: Harris & Ewing.
 
Dr. Howard A. Kelly, Radium Expert of Baltimore, 1914. Creator: Harris & Ewing.
 
Countess De Lagreze [sic], 1918. Creator: Harris & Ewing.
 
Countess De Lagreze [sic], 1918. Creator: Harris & Ewing.
 
Lake Ellen Wilson, 1913. Creator: Harris & Ewing.
 
Langley Field, Va. - Curtis Jn4D Plane, with Olmstead Propeller And Ackerman Wheels, 1917. Creator: Harris & Ewing.
 
Samuel Pierpont Langley, Secretary, Smithsonian Institute, 1913. Creator: Harris & Ewing.
 
Samuel Pierpont Langley, Secretary, Smithsonian Institute, 1913. Creator: Harris & Ewing.
 
Experimental Tandem Biplane On Potomac Embodying Langley Principles, 1917. Creator: Harris & Ewing.
 
Experimental Tandem Biplane On Potomac Embodying Langley Principles, 1917. Creator: Harris & Ewing.
 
Experimental Tandem Biplane On Potomac Embodying Langley Principles, 1917. Creator: Harris & Ewing.
 
Life Saving Suit Worn By T. Aud, 1916. Creator: Harris & Ewing.
 
J.D. Long, Medical Director, Public Health Service, 1923. Creator: Harris & Ewing.
 
Machine Gun Board of War Department - Tracy Dixon, Brig. Gen. Todd, Newton D. Baker..., 1917. Creator: Harris & Ewing.
 
Leonard D. Mahon with steel helmet he invented that could be used as shovel, 1917. Creator: Harris & Ewing.
 
Leonard D.Mahon with Steel Helmet He Invented That Could Be Used As Shovel, 1917. Creator: Harris & Ewing.
 
Mrs. Van H. Manning, U.S. Bureau of Mines, Left, Mine Rescue Methods, 1917. Creator: Harris & Ewing.
 
Marine Corps Rifle Range, Lewis Machine Gun Tests, 1917. Creator: Harris & Ewing.
 
Marine Corps Rifle Range, Winthrop, Md. - Gen. Barnett Testing Colt's Automatic Machine Gun, 1917. Creator: Harris & Ewing.
 
Marine Corps Rifle Range, Winthrop, Md. - Gen. Barnett Testing Colt's Automatic Machine Gun, 1917. Creator: Harris & Ewing.
 
Marine Corps Rifle Range, Winthrop, Md. - Gen. Barnett Testing Colt's Automatic Machine Gun, 1917. Creator: Harris & Ewing.
 
Thomas Riley Marshall, Vice President of The United States, 1914. Creator: Harris & Ewing.
 
Dr. Franklin H. Martin of Chicago, Regent And Secretary General, American College of Surgeons, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, 1913. Creator: Harris & Ewing.