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Abbreviations

WA = Western Approaches Liverpool War Museum

TNMOC = The National Museum of Computing Bletchley Park

NTKC = National Telephone Kiosk Collection

DDA = Digital Document Archive

Some documents in the DDA are available to view.

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373

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STORAGE indicates item is in our Shropshire storage facility

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373

DOCUMENTS

BOOK

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REFERENCE

STORAGE

GPO / British Telecom List of Exchanges Red Book 31st March 1983 Part 1. List of all UK exchanges with type of equipment and number of lines. Statistics on growth and use of phone network (number of lines) for all towns and villages in UK year by year. Published March 31st each year