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  • All fields: experimental
(326 results)



Display: 50

    • Chinese miners Idaho Springs

    • Chinese miners Idaho Springs

    • Dr. James Underhill poses with Chinese-American miners (probably) in the Colorado School of Mines' Edgar Experimental Mine near Idaho Springs (Clear Creek County), Colorado. One man holds a saw.

    • Chinese-Americans--Colorado--Denver--1920-1930.; Idaho Springs (Colo.)--1920-1930.; Miners--Colorado--Idaho Springs--1920-1930.; Mining--Colorado--Idaho Springs--1920-1930.; Underhill, James, PhD.; Colorado School of Mines (Golden,...

    • [between 1920 and 1930]
    • Experimental potatoe [sic] patch, Edgerton Ranch, Carbondale, Colo. Midland Ry.

    • Experimental potatoe [sic] patch, Edgerton Ranch, Carbondale, Colo. Midland Ry.

    • View across rows of potato plants, Edgerton Ranch, near Carbondale, Colorado reached via Colorado Midland Railway; Edgerton family included sons Hamlin (married to May), George (married to Adelaide) & Irvin; experimental agricultural field; distant...

    • Carbondale (Colo.)--1900-1920.; Croplands--Colorado--Carbondale--1900-1920.; Potatoes--Colorado--Carbondale--1900-1920.; Ranches--Colorado--Carbondale--1900-1920.; Colorado Midland Railway Company.

    • [between 1900 and 1919]
    • Dr. Larry Brown, kneeling, explains the growth processes of experimental grass seed mixture at the...

    • Dr. Larry Brown, kneeling, explains the growth processes of experimental grass seed mixture at the Urad reclamation site

    • Dr. Larry Brown demonstrates to his co-workers the growth processes of an experimental mixture of grass seed using crushed rock, wood chips, and dried sludge during the reclamation of the Urad mine site, Clear Creek County, Colorado.

    • Henderson Mine (Clear Creek County, Colo.)--People--1970-1980.; Clear Creek (Clear Creek County, Colo.)--1970-1980.; Mining--Colorado--Clear Creek County--1970-1980.; Reclamation of land--Colorado--Clear Creek County--1970-1980.; Brown, Larry.

    • [between 1975 and 1980]
    • Experimental petroleum distillery

    • Experimental petroleum distillery

    • View of an experimental petroleum distillery at the Colorado School of Mines in Golden (Jefferson County), Colorado. Shows a brick furnace with three insulated tanks mounted on the top. Pipes, a holding tank and machinery are in the room.

    • Colorado School of Mines--1910-1920.; Distillation apparatus--Colorado--Golden--1910-1920.; Golden (Colo.)--1910-1920.; Universities & colleges--Colorado--Golden--1910-1920.

    • [between 1915 and 1920?]
    • Colorado tour 7, Experimental Plant, School of Mines, Golden

    • Colorado tour 7, Experimental Plant, School of Mines, Golden

    • Exterior view of the Colorado School of Mines 1912 Experimental Plant of the School of Mines Research Institute in Golden, Jefferson County, Colorado, shows the multi-story structure with sloping and monitor roofs with outbuildings, automobiles and...

    • Golden (Colo.)--1930-1940.; Buildings--Colorado--Golden--1930-1940.; Universities & colleges--Colorado--Golden--1930-1940.; Colorado School of Mines.

    • [between 1930 and 1940]
    • Experimental plant, School of Mines, Golden

    • Experimental plant, School of Mines, Golden

    • Exterior view of the Colorado School of Mines 1912 Experimental Plant, of the School of Mines Research Institute, in Golden, Jefferson County, Colorado, shows the multi-story structure with sloping roof. Outbuildings, automobiles and foothills are...

    • Golden (Colo.)--1930-1940.; Universities & colleges--Colorado--Golden--1930-1940.; Colorado School of Mines.

    • [between 1930 and 1940]
    • Oil shale deposits near Rifle, Colo.

    • Oil shale deposits near Rifle, Colo.

    • A man wears a tie and stands near sagebrush in a valley below the Roan Cliffs near Rifle (Garfield County), Colorado. Shows trees, scree, and layered shale on steep cliffs in the distance.

    • Oil-shales--Colorado--Garfield County--1920-1930.; Garfield County (Colo.)--1920-1930.; Roan Cliffs (Utah and Colo.)--1920-1930.; Cliffs--Colorado--Garfield County--1920-1930.; Valleys--Colorado--Garfield County--1920-1930.

    • [between 1920 and 1930?]
    • The Bell VTOL jet propelled vertical-rising airplane

    • The Bell VTOL jet propelled vertical-rising airplane

    • View of a Bell Aircraft jet propelled vertical rising airplane in flight at Niagara Falls (Niagara County) New York; letters read: "Experimental," and "NIIO5V."

    • Bell Aircraft Corporation--Products--1950-1960.; Vertically rising aircraft--New York--Niagara Falls--1950-1960.; Niagara Falls (N.Y. and Ont.)--1950-1960.; Airplanes--American--New York--Niagara Falls--1950-1960.; Flight testing--New York--Niagara...

    • 1954, November 16
    • WP locomotive, engine number 172, engine type 4-8-2

    • WP locomotive, engine number 172, engine type 4-8-2

    • Three-quarter view of left side of engine, from front end (has experimental smoke deflector). Photographed: Stockton, Cal., July 25, 1937.

    • Locomotives--1930-1940.; Railroads--Trains--Pictorial works--1937.; Railroad locomotives--California--Stockton.; Western Pacific Railroad Company.

    • 1937
    • UP train, engine number 815, engine type 4-8-4

    • UP train, engine number 815, engine type 4-8-4

    • Train #818, Los Angeles Challenger; 16 cars, 60 MPH, with experimental smoke deflector. Photographed: near Cheyenne, Wyo., October 20, 1940.

    • Locomotives--1940-1950.; Railroads--Trains--Pictorial works--1940.; Railroad locomotives--Wyoming--Cheyenne.; Union Pacific Railroad Company.

    • 1940
    • D&RGW train, engine number 1704, engine type 4-8-4

    • D&RGW train, engine number 1704, engine type 4-8-4

    • Train #20, The Mountaineer; 7 cars, experimental smoke deflector. Photographed: near Arena, Colo., April 14, 1947.

    • Locomotives--1940-1950.; Railroads--Trains--Pictorial works--1947.; Railroad locomotives--Colorado--Arena.; Denver and Rio Grande Western Railway Company.

    • 1947
    • D&RGW train, engine number 1704, engine type 4-8-4

    • D&RGW train, engine number 1704, engine type 4-8-4

    • Train #16, Colorado-New Mexico Express; 8 cars, 45 MPH, experimental smoke deflector. Photographed: Denver, Colo., August 25, 1946.

    • Locomotives--1940-1950.; Railroads--Trains--Pictorial works--1946.; Railroad locomotives--Colorado--Denver.; Denver and Rio Grande Western Railway Company.

    • 1946
    • D&RGW train, engine number 1704, engine type 4-8-4

    • D&RGW train, engine number 1704, engine type 4-8-4

    • Train #16, Colorado-New Mexico Express; 9 cars, 50 MPH, experimental smoke deflector. Photographed: near Littleton, Colo., May 11, 1947.

    • Locomotives--1940-1950.; Railroads--Trains--Pictorial works--1947.; Railroad locomotives--Colorado--Littleton.; Denver and Rio Grande Western Railway Company.

    • 1947
    • AT&SF locomotive, engine number 3452, engine type 4-6-4

    • AT&SF locomotive, engine number 3452, engine type 4-6-4

    • Train #12, Chicago Flyer; engine equipped with experimental smoke deflector; 6 cars, 20 MPH. Photographed: leaving La Junta, Colo., March 31, 1929.

    • Locomotives--1920-1930.; Railroads--Trains--Pictorial works--1929.; Railroad locomotives--Colorado--La Junta.; Atchison, Topeka, and Santa Fe Railway Company.

    • 1929
    • AT&SF locomotive, engine number 3454, engine type 4-6-4

    • AT&SF locomotive, engine number 3454, engine type 4-6-4

    • Train #12; equipped with experimental smoke deflector; 11 cars, 25 MPH. Photographed: leaving Denver, Colo., August 5, 1928.

    • Locomotives--1920-1930.; Railroads--Trains--Pictorial works--1928.; Railroad locomotives--Colorado--Denver.; Atchison, Topeka, and Santa Fe Railway Company.

    • 1928
    • AT&SF locomotive, engine number 3456, engine type 4-6-4

    • AT&SF locomotive, engine number 3456, engine type 4-6-4

    • Train #9, The Navajo; equipped with experimental smoke deflector; 12 cars, 30 MPH. Photographed: approaching La Junta, Colo., March 31, 1929.

    • Locomotives--1920-1930.; Railroads--Trains--Pictorial works--1929.; Railroad locomotives--Colorado--La Junta.; Atchison, Topeka, and Santa Fe Railway Company.

    • 1929
    • AT&SF locomotive, engine number 3461, engine type 4-6-4

    • AT&SF locomotive, engine number 3461, engine type 4-6-4

    • Train #19, The Chief; engine equipped with experimental smoke lifter; 13 cars, 35 MPH. Photographed: east of La Junta, Colo., February 27, 1938.

    • Locomotives--1930-1940.; Railroads--Trains--Pictorial works--1938.; Railroad locomotives--Colorado--La Junta.; Atchison, Topeka, and Santa Fe Railway Company.

    • 1938
    • NP locomotive, engine number 2626, engine type 4-8-4

    • NP locomotive, engine number 2626, engine type 4-8-4

    • Three-quarter view of right side of engine, from front end; former Timken 1111, experimental roller-bearing locomotive. Photographed: Seattle, Wash., July 23, 1939.

    • Locomotives--1930-1940.; Railroads--Trains--Pictorial works--1939.; Railroad locomotives--Washington (State)--Seattle.; Northern Pacific Railroad Company.

    • 1939
    • Gray Goose aircraft

    • Gray Goose aircraft

    • Experimental aircraft. Photographed: at the Gray Goose Airways hanger and plant, 4150 Josephine St., Denver, Colo., February 15, 1931.

    • Airplanes--Pictorial works--1930-1940.; Aircraft--Colorado--Denver--1931.; Gray Goose Airways.

    • 1931
    • Gray Goose aircraft

    • Gray Goose aircraft

    • Experimental aircraft; view of opposite side. Photographed: at the Gray Goose Airways hanger and plant, 4150 Josephine St., Denver, Colo., February 15, 1931.

    • Airplanes--Pictorial works--1930-1940.; Aircraft--Colorado--Denver--1931.; Gray Goose Airways.

    • 1931
    • Sikorsky aircraft

    • Sikorsky aircraft

    • Experimental Model XPS-2, U.S. Navy amphibian 1-J-21; 1-J-22 in background. Photographed: at old Lowry Field, Denver, Colo., September 8, 1929.

    • Airplanes--Pictorial works--1920-1930.; Aircraft--Colorado--Denver--1929.; Sikorsky Aircraft (Firm)

    • 1929
    • Western Pacific locomotive, engine number 172, engine type 4-8-2

    • Western Pacific locomotive, engine number 172, engine type 4-8-2

    • Three-quarter view of left side of engine, from front end (has experimental smoke deflector). Photographed: Stockton, Cal., July 25, 1937.

    • Locomotives--1930-1940.; Railroads--Trains--Pictorial works--1937.; Railroad locomotives--California--Stockton.; Western Pacific Railroad Company.

    • 1937
    • Wooden bridge, Camp Hale, Colorado

    • Wooden bridge, Camp Hale, Colorado

    • View of skitroopers testing an experimental wooden bridge built by the Tenth Mountain Division, Engineering Battalion at Camp Hale Colorado. A line of men are crossing the bridge and more troops wait below. Snow covers the ground.

    • Camp Hale (Colo.)--1940-1950.; Military training--Colorado--1940-1950.; Soldiers--Colorado--1940-1950.; United States. Army. Mountain Division, 10th.

    • [1943-1944]
    • Retort and machinery, Colo. State School of Mines

    • Retort and machinery, Colo. State School of Mines

    • Interior view of machinery and probably an experimental petroleum distillery at the School of Mines in Golden (Jefferson County), Colorado. Shows an elevated tank, machinery, a brick furnace, a steel hood, insulated pipes and steel pipes.

    • Colorado School of Mines--Facilities--1910-1920.; Distillation apparatus--Colorado--Golden--1910-1920.; Golden (Colo.)--1910-1920.; Fire extinguishers--1910-1920.; Interiors--Colorado--Golden--1910-1920.; Machinery--Colorado--Golden--1910-1920.;...

    • [between 1915 and 1920?]
    • Retort, Colo. State School of Mines

    • Retort, Colo. State School of Mines

    • Interior view of probably an experimental petroleum distillery at the School of Mines in Golden (Jefferson County), Colorado. Shows a brick furnace with boilers mounted on top, insulated pipes and steel pipes that empty into a retort, a wooden...

    • Colorado School of Mines--Facilities--1910-1920.; Distillation apparatus--Colorado--Golden--1910-1920.; Golden (Colo.)--1910-1920.; Fire extinguishers--1910-1920.; Interiors--Colorado--Golden--1910-1920.; Machinery--Colorado--Golden--1910-1920.;...

    • [between 1915 and 1920?]
    • Colorado School of Mines training mine, Idaho Springs

    • Colorado School of Mines training mine, Idaho Springs

    • Interior view of the Colorado School of Mines Edgar Experimental Mine, Idaho Springs, Colorado, shows students with a drilling machine.

    • Idaho Springs (Colo.)--1930-1940.; Mining--Colorado--Idaho Springs--1930-1940.; Colorado School of Mines.

    • [between 1930 and 1940?]
    • Students of School of Mines in training tunnel

    • Students of School of Mines in training tunnel

    • Interior view of the Colorado School of Mines Edgar Experimental mine in Idaho Springs, Colorado, shows a figure holding a spotlight on students who push an ore cart through timber bracing.

    • Idaho Springs (Colo.)--1930-1940.; Mining--Colorado--Idaho Springs--1930-1940.; Colorado School of Mines.

    • [between 1930 and 1940]
    • 10:30 A.M. General Motors Aerotrain entering Denver Union Station

    • 10:30 A.M. General Motors Aerotrain entering Denver Union Station

    • View of the General Motors experimental streamliner the Aerotrain led by a LWT12 locomotive at Union Station in Denver, Colorado. The streamlined locomotive has four headlights. A steel viaduct and a flour mill are in the distance.

    • Denver (Colo.)--1950-1960.; Diesel locomotives--Colorado--Denver--1950-1960.; Railroads--Colorado--Denver--1950-1960.

    • 1956 March 18
    • School of Mines training mine

    • School of Mines training mine

    • Two men stand outside the entrance to the Colorado School of Mines Edgar experimental mine in Idaho Springs, Colorado. One man leans on an ore cart on tracks, the other wears jodhpurs and stands by the boiler's water tank with a pipe leading into...

    • Idaho Springs (Colo.)--1930-1940.; Mining--Colorado--Idaho Springs--1930-1940.; Colorado School of Mines.

    • [between 1930 and 1940]
    • Students of the Colorado School of Mines at work

    • Students of the Colorado School of Mines at work

    • Interior of the Colorado School of Mines Edgar Experimental Mine in Idaho Springs, Colorado, show students setting up a drill with a huge wrench. They wear heavy, soiled clothing, hard hats, and miners lamps.

    • Idaho Springs (Colo.)--1930-1940.; Mining--Colorado--Idaho Springs--1930-1940.; Colorado School of Mines.

    • [between 1930 and 1940?]
    • Retort, Colo. State School of Mines

    • Retort, Colo. State School of Mines

    • Interior view of probably an experimental petroleum distillery at the School of Mines in Golden (Jefferson County), Colorado. Shows a brick furnace with boilers mounted on top, insulated and steel pipes that empty into a retort, a wooden ladder,...

    • Colorado School of Mines--Facilities--1910-1920.; Distillation apparatus--Colorado--Golden--1910-1920.; Golden (Colo.)--1910-1920.; Interiors--Colorado--Golden--1910-1920.; Machinery--Colorado--Golden--1910-1920.; Retorts...

    • [between 1915 and 1920?]
    • Experimental potatoe [sic] patch, Edgerton Ranch, Carbondale, Colo. Midland Ry.

    • Experimental potatoe [sic] patch, Edgerton Ranch, Carbondale, Colo. Midland Ry.

    • View of potato field, Edgerton Ranch, near Carbondale, Colorado reached via Colorado Midland Railway, with Mount Sopris (elevation 12,823 feet) in background; Edgerton family included sons Hamlin (married to May), George (married to Adelaide), &...

    • Carbondale (Colo.)--1900-1920.; Sopris, Mount (Colo.)--1900-1920.; Croplands--Colorado--Carbondale--1900-1920.; Potatoes--Colorado--Carbondale--1900-1920.; Ranches--Colorado--Carbondale--1900-1920.; Colorado Midland Railway Company.

    • [between 1900 and 1919]
    • East High spotlight: vol 30 no 13

    • East High spotlight: vol 30 no 13

    • Newspaper produced by East High School of Denver, Colorado. Included in the paper are photographs of students, articles on school events and sports.

    • East High School (Denver, Colo.)--Students--Writings.; East High School (Denver, Colo.)--Periodicals.; High schools--Colorado--Denver--Periodicals.; Public schools--Colorado--Denver.; High schools--Colorado--Denver.; East High School (Denver, Colo.)

    • 1944 May 25

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