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Aldis Lamp: Morse lamp used on ships for visual signalling. This is a "250 mm Signalling Projector". |
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A railway telegraph table with a register by C. Lorenz. |
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Toy or demonstration Morse registers. |
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Siphon recorder/undulator by Lauritzen. |
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"Wheatstone" transmitter for Morse punched tape, circa 1875. The mechanism is driven by a weight. The transmitter is shown sitting on its original transport box. |
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Unique double plate sounder in resonator with polarized relay. See the detailed image of the plate sounder below. |
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Close-up image of the plate sounder. |
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"Remote Printer" by Siemens and Halske, circa 1898. Not a teletype, but a true telegraph. The principle of operation is the same as that of the Hughes instruments. |
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Western Union Telegraph stock ticker. |
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"Heliograph". This was used to send Morse code with reflected sunlight. This is a "Mance" type instrument which uses a mechanism to tilt the mirror in accordance with the dots and dashes of the Morse code. Circa 1900. This type of instrument was standard issue in the Canadian army into WWII ! |
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Camelback telegraph key. |