[GreenKeys] Fw: BBC enquiry - telegraph machine

[Alf Fisher]

Hi Greenkeyers,
I have received an enquiry from the BBC  who are making documentary about telecommunications as part of a series of short films about WW1. 
They would like to film some close ups of a telegraph machine that works or at least moves/makes noises as part of a story about the Zimmermann Telegram, so ideally it would be a machine of this era.  The Zimmermann Telegram is well documented on Wikipedia and other places.

I need your help in determining how the message of the Zimmermann Telegram was produced back in 1917.  I originally thought it was produced on some kind of teleprinter but there is lower case text at the top and bottom of the telegram I feel sure that you guys will know far more about the history of Western Union than I will ever know.  Was it done on a manual typewriter with an operator taking down the message from either an undulator slip or a Morse sounder? 

Any thoughts welcome.

Alf



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