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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, at Desk, 1916. Creator: Harris & Ewing.
 
Mergenthaler, Ottmar, 2nd Linotype Machine with Band, Invented By Him; 3rd Design He..., 1917. Creator: Harris & Ewing.
 
Bureau Of Mines, Mine Rescue Methods, 1917. Creator: Harris & Ewing.
 
Minidoka Project - U.S. Reclamation Bureau. Minidoka Desert in 1905, Before Irrigation, 1912. Creator: Harris & Ewing.
 
Mountaineers - Mountain Women, 1913. Creator: Harris & Ewing.
 
Mountaineers - Mountain Women, 1913. Creator: Harris & Ewing.
 
Curtiss Biplane 2 Engines, with Floats..., 1917. Creator: Harris & Ewing.
 
Curtiss Biplane 2 Engines, with Floats..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Biplane 2 Engines, with Floats, Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Geographical [sic] Society - Anniversary of Bell Telephone, 1916. Creator: Harris & Ewing.
 
National Guard of D.C. - Field Tactics, 1915. Creator: Harris & Ewing.
 
Owen, F.D. Public Buildings And Grounds Custodian of The Flags, Left, Planting Tree, Presid..., 1913 Creator: Harris & Ewing.
 
Panama Canal, 1913. Creator: Harris & Ewing.
 
Panama Canal, 1913. Creator: Harris & Ewing.
 
Panama Canal, 1913. Creator: Harris & Ewing.
 
Panama Canal, 1913. Creator: Harris & Ewing.
 
Panama Canal, 1904. Creator: Harris & Ewing.
 
Photographer with Large Format Camera, 1914. Creator: Harris & Ewing.
 
Bureau of Reclamation - Arrowcock [sic] Dam, Boise, Idaho; Showing Tunnel..., 1912. Creator: Harris & Ewing.
 
Reclamation, Bureau Of - Big Men in U.S. Reclamation Service: A.P. Davis, Chief Engineer..., 1912. Creator: Harris & Ewing.
 
Bureau of Reclamation - Shoshone Dam, Wyoming, Highest in World, 1912. Creator: Harris & Ewing.
 
Bureau of Reclamation - Truckee-Carson Project, Nevada; Canal Carrying Truckee River To..., 1912. Creator: Harris & Ewing.
 
Richardson Tandem Biplane Hydroplane on Potomac, April, 1916.  Creator: Harris & Ewing.
 
Richardson Tandem Biplane Hydroplane Taking Off On Potomac, April, 1916. Creator: Harris & Ewing.
 
Rodney, Army Horse in Cuban War, Retired at Fort Myer, 1916. Creator: Harris & Ewing.
 
Roosevelt Dam, Arizona - Salt River Project of Bureau of Reclamation, Dedication Scene, 1912. Creator: Harris & Ewing.
 
Theodore Roosevelt - Cartoon About The 'River of Doubt', 1914. Creator: Unknown.
 
J. W. Scollick of Smithsonian Institute, 1916. Creator: Harris & Ewing.
 
Seal of The United States - Stamping Bonds, 1917. Creator: Harris & Ewing.
 
Seal of The United States at State Department, 1917. Creator: Harris & Ewing.
 
Seal of The United States at State Department, 1917. Creator: Harris & Ewing.
 
Seal of The United States at State Department, 1914. Creator: Harris & Ewing.
 
Storm Damage, 1913. Creator: Harris & Ewing.
 
Target Practice - Range Finder at Work, 1913. Creator: Unknown.
 
Target Practice - Range Finding Device, 1913. Creator: Unknown.
 
Target Practice - Torpedo, 1913. Creator: Unknown.
 
Target Practice - Torpedoes, 1913. Creator: Unknown.
 
Woman On Bicycle, 1917 or 1918. Creator: Unknown.
 
N.R. Wood of Smithsonian Institution - Mounting Birds, 1916. Creator: Unknown.
 
N.R. Wood of Smithsonian Institution - Mounting Birds, 1916. Creator: Unknown.
 
Schermerhorn cat, portrait photograph, 1928 Dec. 3. Creator: Arnold Genthe.
 
Cosgrave grounds, not before 1917. Creator: Arnold Genthe.
 
Rothbart, Albert, Mr., grounds, between 1920 and 1935. Creator: Arnold Genthe.
 
Helen MacGowan Cooke picking California golden poppies in a field, between 1906 and 1911. Creator: Arnold Genthe.
 
Viola Kraus and Helen Freeman standing outdoors, 1915 June. Creator: Arnold Genthe.
 
A Dog, c. 1760. Creator: Jean-Baptiste Greuze.
 
Male and Female Bathers. Creator: Alfred Grevin.
 
Male and Female Bathers with Umbrella. Creator: Alfred Grevin.
 
St. Mary's College, St. David's, 1902. Creator: Frederick Landseer Maur Griggs.