13736826 - Thomas Alva Edison13755145 - Poppy field in Eden Valley, Cumbria13600430 - Converging railway tracks13502197 - Le Sage early electric telegraph, 177412991004 - Communication in antiquity, illustration13736823 - Thomas Alva Edison13443843 - Morse telegraph receiver, 19th century13502601 - Samuel Morse, Morse code receiver, 1840s13501774 - Overland pony express rider13443692 - Thomson telegraph recorder, 19th century13443720 - Steam factory for pneumatic post, 19th century illustration12903079 - Opening of the London to Paris telegraph link, 185212903068 - Morse's first telegraph, 183713736818 - Thomas Alva Edison13613972 - Progress of the century, 19th century illustration12914271 - Lesage with the first electric telegraph, Geneva, 177412901663 - Samuel Finley Breese Morse, 19th century American inventor13473596 - Vintage telegraph machine12916506 - Magnetism, c185012902993 - Rear view of Charles Wheatstone's electric telegraph, 185013257427 - Fullerphone portable military telegraph, 20th century12653474 - Transatlantic Cable Design Templates, 1850-1860s14084345 - Common battery desk telephone, illustration12991010 - Defending a telegraphic tower, illustration12903298 - Claude Chappe, French engineer and inventor, c190012903067 - Telegraph office, c190012914272 - Lesage with the first electric telegraph, Geneva, 177412904013 - Building a Chappe telegraph station, c179312903265 - Charles Wheatstone, British physicist, 188212655712 - Crimean War Cable Plough14084341 - Sumter local battery wall telephone circuits, illustration12903084 - Main station of the Exchange Telegraph Company, London, 188214084343 - Circuits of Western Electric wall telephone, illustration12903868 - Morse telegraphy, Cincinnati, Ohio, USA, 185912903065 - Morse electric printing telegraph, c188212902997 - Facsimile or copying telegraph system, 189612947784 - Genetics and Morse code, conceptual image13502600 - Joseph Henry, signal telegraph, 183212903266 - Charles Wheatstone, British physicist, 19th century12902995 - Caselli's pantelegraph, 187412655710 - Charles Siemens12653469 - Transatlantic Cable Design Templates, 1850-1860s12653046 - Cooke and Wheatstone Two Needle Telegraph, 1830s12490283 - White House telegraph office, 1900s14084346 - Common battery wall telephone, illustration14084342 - Garford local battery wall telephone circuits, illustration12914572 - Opening of telegraph link between Paris and Casablanca, 190712904012 - Chappe's aerial telegraph system, Algeria, 19th century12446433 - Early electric telegraph receiver, 19th Century illustration12446432 - Early electric telegraph machine, 19th Century illustration12991015 - Jean Alexandre's telegraph, illustration12903869 - Morse telegraph operating room, Cincinnati, Ohio, USA, 185912903297 - Claude Chappe, French engineer and inventor, c190112903103 - New Year greetings card, 189412903070 - Electric printing telegraph, 188712903069 - Sending a message on a Morse electric printing telegraph12902996 - Alexander Glen's facsimile telegraph system, 188612902994 - Caselli's pantelegraph, 187413443713 - British heliographer, 19th century illustration12914219 - Aerial telegraph: ancient Roman signal towers, c190012904014 - Napoleon's troops defending a telegraph tower, c181512903066 - Morse electric printing telegraph, c188214084347 - North Electric common wall telephone circuits, illustration12903277 - Opening of the 1851 London to Paris telegraph link12903075 - Lord Kelvin's transatlantic telegraph, 187712653471 - Dover to Calais Telegraph Wire, 185012376985 - George Saward, British engineer12303041 - Louis Breguet12303027 - George Saward, British engineer12903587 - Samuel Finley Breese Morse, American and inventor, 189612902989 - Cook and Wheatstone's 5-needle telegraph, 183712901751 - The Atlantic Telegraph Cable, Parade', c185812290069 - Samuel Morse, US inventor12915641 - Female telegraph workers, 187112904011 - First Chappe telegraph message from St Petersburg12903263 - William Cooke and Charles Wheatstone's five-needle telegraph12897455 - Titanic - Iceberg Telegram, 191214084348 - Wiring diagram for field radio pack set, illustration12947785 - Genetics and Morse code, conceptual image12914220 - Ancient Greek soldiers tending a signal fire, c190012553931 - Gauss and Weber, telegraph inventors12446437 - Underwater telegraph cable construction, 19th C illustration12376975 - Charles Bright, British electrical engineer12947786 - Genetics and Morse code, conceptual image12947790 - Genetics and Morse code, conceptual image12446431 - Georges-Louis Le Sage, Swiss physicist14084349 - Wiring diagram for radio pack set, illustration12947789 - Genetics and Morse code, conceptual image12947788 - Genetics and Morse code, conceptual image12947787 - Genetics and Morse code, conceptual image12903586 - Samuel Finley Breese Morse, American and inventor, 187312903264 - William Cooke and Charles Wheatstone's five-needle telegraph14084340 - Type V Edison primary battery cell, illustration12901601 - Great Eastern laying the Atlantic telegraph cable, c186512654331 - Morse Telegraph, Signal Receiver, 19th Century12645074 - Bell's telephone patent, 187612376991 - Moritz Hermann von Jacobi, German physicist12377002 - Josiah Latimer Clark, English electrical engineer12303039 - John Watkins Brett, English telegraph engineerpage suivante
