American Morse code
American Morse Code — also known as Railroad Morse—is the latter-day name for the original version of the Morse Code developed in the mid-1840s, by Samuel Morse and Alfred Vail for their electric tele...
American Morse code - Wikipedia
Telegraph Sounder & Box Relay - American Morse Code - YouTube
Jan 9, 2010 ... A sample of news copy in American Morse Code at 27-words per minute via a J. H. Bunnell Box Relay and Western Union Sounder.