The Communications Museum Trust - Equipment & Aretfacts
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Abbreviations

NTKC = National Telephone Kiosk Collection

DDA = Digital Document Archive

Some documents in the DDA are available to view.

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178

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STORAGE indicates item is in our Shropshire storage facility

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178

DOCUMENTS

PHOTO

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STORAGE

Highgate Wood, worlds 1st electronic exchange. Photo of one of the toggle cards - bistable memory. B/W print & JPEG in DDA