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Actions	Details Remove from selection Add to selection Title Answers to queries Reference NAEST 176/4/20 Date 2002 Scope and Content Details on STRAD message protocols; the British Rail system; Gatwick; commissioning dates; numbers of lines; and dates of removal from service. Physical description Number of pieces: 1, Pages/folios: 2 Language English. Persons keyword British Rail Subject Gatwick Airport Conditions governing access Several files in this collection are closed. Hugh McGregor Ross dies in Autumn 2014 - so closure period for closed periods should be 40 years from this date i.e. 2054. Closed files include; NAEST 176/01/03/13 NAEST 176/02/12 NAEST 176/03/02 NAEST 176/04/15 NAEST 176/04/21/01 NAEST 176/04/47 NAEST 176/04/52 NAEST 176/04/53 NAEST 176/04/55 Level of description file Hierarchy browser 110000001 NATIONAL ARCHIVE FOR ELECTRICAL SCIENCE AND TECHNOLOGY contains 322 parts UK0108 NAEST 176 McGregor Ross collection on the British computing industry [SOME CLOSED ITEMS] contains 4 parts UK0108 NAEST 176/4 Digital Electronic Telegraph Message Switching Systems. contains 55 parts NAEST 176/4/20 Answers to queries

Title
Answers to queries
Reference
NAEST 176/4/20
Date
2002
Scope and Content
Details on STRAD message protocols; the British Rail system; Gatwick; commissioning dates; numbers of lines; and dates of removal from service.
Physical description
Number of pieces: 1, Pages/folios: 2
Language
English.
Persons keyword
British Rail
Subject
Gatwick Airport
Conditions governing access
Several files in this collection are closed. Hugh McGregor Ross dies in Autumn 2014 - so closure period for closed periods should be 40 years from this date i.e. 2054. Closed files include; NAEST 176/01/03/13 NAEST 176/02/12 NAEST 176/03/02 NAEST 176/04/15 NAEST 176/04/21/01 NAEST 176/04/47 NAEST 176/04/52 NAEST 176/04/53 NAEST 176/04/55
Level of description
file

Details