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- Elevator Supply & Repair Co. Elevator Travel Recorder, circa 1915 -

- circa 1915
- Collections - Artifact
Elevator Supply & Repair Co. Elevator Travel Recorder, circa 1915
- Wood Engraving, Design for an Elevated Horse-Drawn Railway in New York, circa 1842 - The key to turning mass transit into rapid transit was in removing it from busy streets. One alternative was to build elevated structures that carried streetcars over city traffic. New York City, with its limited land and boundless population, developed a network of elevated lines that covered the length of Manhattan. Other cities, notably Chicago, adopted the technology too.

- circa 1842
- Collections - Artifact
Wood Engraving, Design for an Elevated Horse-Drawn Railway in New York, circa 1842
The key to turning mass transit into rapid transit was in removing it from busy streets. One alternative was to build elevated structures that carried streetcars over city traffic. New York City, with its limited land and boundless population, developed a network of elevated lines that covered the length of Manhattan. Other cities, notably Chicago, adopted the technology too.
- Tooth Elevator, circa 1910 - Domestic horses require frequent dental maintenance to file down a tooth's sharp edges and prevent infections. Occasionally, however, a horse's tooth needs to be removed. This dental elevator helps veterinarians lift an infected tooth, making it easier to grasp with forceps to extract it.

- circa 1910
- Collections - Artifact
Tooth Elevator, circa 1910
Domestic horses require frequent dental maintenance to file down a tooth's sharp edges and prevent infections. Occasionally, however, a horse's tooth needs to be removed. This dental elevator helps veterinarians lift an infected tooth, making it easier to grasp with forceps to extract it.
- Letter from George Washington Carver to Henry Ford, September 29, 1941 - Henry Ford and George Washington Carver were colleagues, correspondents, and friends. Carver lived and worked at the Tuskegee Institute in Alabama. By 1941, he had become increasingly frail. Henry Ford paid for an elevator to be installed at Tuskegee so Carver could travel from his rooms to his laboratory. In this letter Carver offers his profuse thanks for the gift.

- September 29, 1941
- Collections - Artifact
Letter from George Washington Carver to Henry Ford, September 29, 1941
Henry Ford and George Washington Carver were colleagues, correspondents, and friends. Carver lived and worked at the Tuskegee Institute in Alabama. By 1941, he had become increasingly frail. Henry Ford paid for an elevator to be installed at Tuskegee so Carver could travel from his rooms to his laboratory. In this letter Carver offers his profuse thanks for the gift.
- Model of Textile Mill Freight Elevator -

- Collections - Artifact
Model of Textile Mill Freight Elevator
- Loading a Whaleback Ship, Chicago, Ill., circa 1895 -

- circa 1895
- Collections - Artifact
Loading a Whaleback Ship, Chicago, Ill., circa 1895
- "Map Showing Chicago's New Subway and Elevated Road Connections," circa 1940 - This map introduced Chicagoans to the Chicago Rapid Transit Company's new subway lines, which would complement and relieve traffic on existing surface and elevated rail lines. When the CRT opened their subway lines in 1943, Chicago's rail lines, buses and streetcars were all run by separate, private companies; they merged in 1947 to become the municipally owned Chicago Transit Authority.

- circa 1940
- Collections - Artifact
"Map Showing Chicago's New Subway and Elevated Road Connections," circa 1940
This map introduced Chicagoans to the Chicago Rapid Transit Company's new subway lines, which would complement and relieve traffic on existing surface and elevated rail lines. When the CRT opened their subway lines in 1943, Chicago's rail lines, buses and streetcars were all run by separate, private companies; they merged in 1947 to become the municipally owned Chicago Transit Authority.
- Portrait of Frank J. Sprague, 1895-1915 - Frank Julian Sprague (1857-1934) was an inventor, engineer, and entrepreneur. Sprague, after serving in the U.S. Navy and working for Thomas Edison, developed an electric motor to power streetcars. His motor would transform public transportation. In 1887, he built the first successful large electric street railway system in Richmond, Virginia. The Richmond Union Passenger Railway became a model for other urban transportation systems.

- 1895-1915
- Collections - Artifact
Portrait of Frank J. Sprague, 1895-1915
Frank Julian Sprague (1857-1934) was an inventor, engineer, and entrepreneur. Sprague, after serving in the U.S. Navy and working for Thomas Edison, developed an electric motor to power streetcars. His motor would transform public transportation. In 1887, he built the first successful large electric street railway system in Richmond, Virginia. The Richmond Union Passenger Railway became a model for other urban transportation systems.
- Tooth Elevator - Domestic horses require frequent dental maintenance to file down a tooth's sharp edges and prevent infections. Occasionally, however, a horse's tooth needs to be removed. This dental elevator helps veterinarians lift an infected tooth, making it easier to grasp with forceps to extract it.

- Collections - Artifact
Tooth Elevator
Domestic horses require frequent dental maintenance to file down a tooth's sharp edges and prevent infections. Occasionally, however, a horse's tooth needs to be removed. This dental elevator helps veterinarians lift an infected tooth, making it easier to grasp with forceps to extract it.