Elmer Treloar Collection of Railroad Station Negatives
A collection of negatives of photographs documenting railroad stations in the United States and Canada. The majority of the slides are of stations in the Midwestern U.S.
Washington, D.C. Bridges Collection
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 …
Orlan W. Boston Dynamometer Papers
This collection consists of technical papers, tables, charts, photographs and other information on tests of the physical, and chemical properties of metals, as determined by various cutting and other processes.
Robert Wetherill Company Records
These records document the activities of the Wetherill Plant of the Sun Shipbuilding and Dry Dock Company, originally the Wetherill Company, particuarly the manufacture of steam and diesel engines. Included are engine specification cards; bound lists and charts of specifications and prices; a bound index of drawing numbers, 1886-1928; steam engine …
T.B. Cryer Company Records
These records contain plans and specifications for plumbing and heating systems installed in a residence, schools, and public buildings in Newark, Orange, West Orange, Rahway, and Montclair, New Jersey.
Lawrence Talma Smith Papers
The collection includes engineering reports, contract specifications, construction photographs, and drawings for South Park Commissioners and Chicago Park District projects, 1927, 1931, 1935-1940; Ohio Turnpike projects, 1951; railway bridges, 1953-1954; and Northern Illinois Toll Highway projects, 1954-1956. Also included are a copy of Smith's thesis for the Civil Engineering degree from Armour Institute of Technology, 1940; an …
Penn Station, New York, Photographs
On paper and glass, silver gelatin.
Glass plate negatives and stereographs relating to the construction of Penn Station and the Pennsylvania Railroad's work in New York City, including the Station foundations and the East and Hudson River tunnels.
William J. Savage Company
Whitman, John (President of Oakland Group, Inc.)
The collection contains blueprints, photographs, correspondence, trade literature, and business records relating to the Savage Company's manufacture of crushing, milling and pulverizing equipment.
Dean F. Petersen Collection
The collection documents some of the writings by Dean F. Petersen, a civil engineer specializing in water resource management.
Samuel E. Reed Bridge Collection
Reed, Grace Fillmore
Collection consists of scrapbooks documenting bridges in the United States and other countries.