Approximately one hundred fifteen glass negatives of diesels.
Photographs Plowden took of bridges, aqueducts and viaducts all over the United States and a few in Canada. The photographs are of various types of bridges: truss, suspension, covered. Some photographs feature close-up details of architectural elements, such as arches, chains, towers and ornamentation.
Glass plate negatives documenting the Niagara Railroad and its architectural structures.
Fifty-eight titled photographs taken by Sir Robert Cotton, of scenes along the C & O Canal, including locks, acqueducts, canal station; and cyclists and joggers along the towpaths.
Photoprints and negatives documenting the construction of several Washington, D.C. bridges. The Washington Aqueduct Bridge is the subject of most of the images. The Washington Channel Bridge, the Potomac Highway Bridge, and the 11th Street Bridge are also included among the images. Additionally, there is a letterpress book, an employee time book, a...
These records of the Westinghouse Electric and Manufacturing Company of East Pittsburgh, Pennsylvania, contain photographs of gas engines, steam turbines, machine tools, foundry and manufacturing methods, and automobile engines, 1896-1921; instruction books, bulletins, and catalogs, 1889-1950; engine lists for compound, junior compound, and standar...
The collection documents the engineering career of Cuyler W. Brooks, who worked on projects including dams, mills, and water and power plants, many of them overseas and particularly in South America. The papers include project files, proposals, drawings, specifications, contracts, correspondence, and articles.
This album, prepared for a Bell System conference in Chicago, 1925, contains black-and-white photographs of the Hawthorne, Illinois Works of the Western Electric Company including views of buildings and grounds, offices, laboratories, shops, and the rod and wire mill.
Collection contains correspondence, specifications, contsruction estimates, proposals, photographs and blue prints of plans, sections, elevations, charts and diagrams for United States Department of the Interior, Reclamation Service Projects, 1908-1918. Rancagua, Chile where they built a Rio Pangal Hydroelectric Power Plant and and extension of t...
A collection of photographs, some prints but mostly negatives, documenting the facilities, products and staff of the Dodge Manufacturing Company between 1905 and 1924. There are exterior and interior views of the factory.