Illus. in: Harper's weekly, 1876 Dec. 23, p. 1041. Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Engineering drawing shows trestles and bracings of Dale Creek, Wyoming, railroad bridge as elevation, plan, and cross section, and details. In album: Album of designs of bridges, roofs, turntables, iron trestl More
This record contains unverified, old data from caption card. Public domain photograph of 19th-century stereoscopic card, Pennsylvania, free to use, no copyright restrictions image - Picryl description
Engineering drawing shows deck spans and trestles of three railroad bridges as elevations, plans, and cross sections. In album: Album of designs of bridges, roofs, turntables, iron trestles, pneumatic and maso More
Title and other information transcribed from caption card. From sketches by H.A. Ogden. Illus. in: Frank Leslie's illustrated newspaper, vol. 48, no. 1224 (1879 Mar. 15), pp. 24-25.
Pumping station. Title translated from album caption. Captioned in Ottoman Turkish and French. No. 30. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: More