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Colour wall chart of a Morse writing telegraph with paper tape, batteries, wiring diagram, and punctuation code table.

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Skrivetelegrafen efter Morse, František Hromádko (1888). Via artnap.com

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Why is this public domain? František Hromádko died in 1911; this work is in the public domain.

About this work

A colour lithographic wall chart titled Skrive-Tele, labelled Tavle XI, showing a Morse writing telegraph with its paper tape, key, and galvanic batteries wired between Station B and a pole line. A table lists punctuation signals in dot and dash notation and a key explains the lettered parts of the apparatus.