Telegraph relays amplify an electrical signal in a telegraph line. Telegraph messages travel as a series of electrical pulses through a wire from a transmitter to a receiver. The pulses fade in ...
See more items in: Underwood & Underwood Glass Stereograph Collection, Underwood & Underwood Glass Stereograph Collection / Series 2: American Stereoscpopic Co. glass plates / 2.2: American ...
See more items in: Underwood & Underwood Glass Stereograph Collection, Underwood & Underwood Glass Stereograph Collection / Series 3: Underwood & Underwood glass plates / 3.1: Underwood and Underwood ...
See more items in: Underwood & Underwood Glass Stereograph Collection, Underwood & Underwood Glass Stereograph Collection / Series 3: Underwood & Underwood glass plates / 3.1: Underwood and Underwood ...
Physical Description: paper (overall material)Measurements: overall; overall: 3 1/2 in x 4 in; 8.89 cm x 10.16 cm ...
Collection Creator: National Museum of American History (U.S.)Bunch, Lonnie G.United States. Department of AgricultureNational Association of State Universities and Land-Grant Colleges. See more items ...
Collection Performer: Basie, Count, 1904-1984Collection Collector: Smith, ErnieCollection Performer: Webster, BenArmstrong, Louis, 1901-1971Ellington, Duke, 1899 ...
Open every day, except December 25, from 10:00 a.m. to 5:30 p.m. Admission is free and no tickets are required. Our mission is to empower people to create a just and compassionate future by exploring, ...
See more items in: Edward J. Orth Memorial Archives of the New York World's Fair, Edward J. Orth Memorial Archives of the New York World's Fair / Series 11: Oversize Materials ...
Physical Description: paper (overall material)ink (overall material)Measurements: overall: 28 cm x 53.4 cm; 11 1/32 in x 21 1/32 in ...
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