Franklin's experiment, June 1752. Demonstrating the identity of lightning and electricity, from which he invented the lightning rod. Lithograph by Currier & Ives, 1876.
Reproduction number: LC-USZC2-2364 (color film copy slide)

The first cotton gin. Wood engraving in Harper's Weekly, Dec. 18, 1869 after Wm. Sheppard.
Reproduction number: LC-USZ62-802

Samuel F. B. Morse. (Three-quarter length). Photograph by Mathew Brady.
Reproduction number: LC-USZ62-2188

The first telegraphic instrument. Photograph by New York Fine Art Company, 1870.
Reproduction number: LC-USZ62-1406

What hath God wrought. (First telegraphic message). Photograph.
Reproduction number: LC-USZ62-5883

The progress of the country. The lightning steam press. The electric telegraph. The locomotive. The steamboat. Lithograph by Currier & Ives, 1876.
Reproduction number: LC-USZ62-664

Alexander Graham Bell. (Bust) Photograph by Pach Bros., 1904.
Reproduction number: LC-USZ62-3205

Trial exhibition of Bell's telephone for the transmission of sound by electricity, operated between Salem & Boston, Mass., Mar. 15 ... Bell addressing a party of scientific men. Wood engraving in Frank Leslie's Illustrated Newspaper, Mar. 31, 1877, after E. R. Morse.
Reproduction number: LC-USZ62-794

G. Marconi sending first wireless marine message in America. Photograph copyrighted by Benjamin A. Howes, 1899.
Reproduction number: LC-USZ62-7310

New Orleans. A leave at night. Electric-light illumination. Reproduction in Harper's Weekly, Mar. 3, 1883, of drawing by J. O. Davidson.
Reproduction number: LC-USZ62-5367

A street lighted by natural gas at Findlay, Ohio. Wood engraving in Harper's Weekly, Dec. 19, 1885, after drawing by Charles Graham of photos. by Zay, Crozier & Linaweaver.
Reproduction number: LC-USZ62-5771