If you are a ham radio operator of a certain age, you probably remember ads for “The Instructograph,” a mechanical device for learning Morse code. [Our Own Devices] has an ancient speci… ...

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Morserino 32 multifunctional Morse code machine 10:31 am October 25, 2018 By Julian Horsey ...

Above, an early effort at that code, from around 1837, appears on the bottom line, labeled "2d For Letters." Below, recent Pictures of the Day: Image: Library of Congress.