International Morse Code

by oksmith - uploaded on October 18, 2020, 3:09 am

PD from Wikimedia Commons



From page 96 of Radio Receiving for Beginners. Rhey T. Snodgrass and Victor F. Camp (copyright 1922 by The MacMillan Company, New York)

Tags
morse code morse code telegraph telegram communication telecommunication
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170 k
Safe for Work?
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