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Field telephones are telephones used for military communications. They can draw power from their own battery, from a telephone exchange (via a central battery known as CB), or from an external power source. Some need no battery, being sound-powered telephones . Telephone linesmen ford Lunga River during the Guadalcanal Campaign of World War II.
This category is for images (including graphics and photographs) taken or made by members of the U.S. military or Department of Defense during the course of the person's official duties. Under United States copyright law, such images are public domain . The preferred destination for such uploads is Commons Category:PD US Military.
This is one of the largest collections of public domain images online (clip art and photos), and the fastest-loading. Maintainer vets all images and promptly answers email inquiries. Open Clip Art – This project is an archive of public domain clip art. The clip art is stored in the W3C scalable vector graphics (SVG) format.
Old Receiver schematic, c.1906 A German rotary dial telephone, the W48 Top of cellular telephone tower By 1904, over three million phones were connected by manual switchboard exchanges in the U.S. [32] By 1914, the U.S. was the world leader in telephone density and had more than twice the teledensity of Sweden, New Zealand, Switzerland, and Norway.
Military communications – or "comms" – are activities, equipment, techniques, and tactics used by the military in some of the most hostile areas of the earth and in challenging environments such as battlefields, on land (compare radio in a box ), underwater and also in air. Military comms include command, control and communications and ...
Candlestick telephone. A Western Electric desk stand telephone of the 1920s and 30s. The candlestick telephone (or pole telephone) is a style of telephone that was common from the late 1890s to the 1940s. A candlestick telephone is also often referred to as a desk stand, an upright, or a stick phone. Candlestick telephones featured a mouthpiece ...
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War photography. Bodies on the battlefield at Antietam, 1862, Alexander Gardner. War photography involves photographing armed conflict and its effects on people and places. Photographers who participate in this genre may find themselves placed in harm's way, and are sometimes killed trying to get their pictures out of the war arena.
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