Record revealed
A dramatic plea for Churchill’s help from Bletchley Park
In 1941, four Government Code and Cypher School cryptanalysts, including Alan Turing, made a stunning appeal directly to Winston Churchill.
Piece
Altimeters: general
Catalogue reference: AVIA 39/78
What’s it about?
This record is about the Altimeters: general dating from 1945-1946 in the series Operations and Technical Radio Committee (Watson-Watt Committee): Sub-committee for.... It is held at The National Archives, Kew.
Is it available online?
No, this record is not available online. However, you can order a copy. Other ways to view it.
Can I see it in person?
Yes, this record is held at The National Archives and is available to see in person. How to view it.
Full description and record details
-
Reference (The unique identifier to the record described, used to order and refer to it)
- AVIA 39/78
-
Date (When the record was created)
- 1945-1946
-
Description (What the record is about)
-
Altimeters: general
-
Held by (Who holds the record)
- The National Archives, Kew
-
Former department reference (Former identifier given by the originating creator)
- 4.6
-
Legal status (A note as to whether the record being described is a Public Record or not)
- Public Record(s)
-
Closure status (Whether the record is ‘open’ (available to the public) or ‘closed’ (not available due to a legal exemption))
- Open Document, Open Description
-
Subjects (Categories and themes found in our collection (our subject list is under development, and some records may have no subjects or fewer than expected))
-
- Topics
- Radio and television
- Computing
-
Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C2229629/
How to order it
- View this record page in our current catalogue
- Check viewing and downloading options
- Select an option and follow instructions
Series information
AVIA 39
Operations and Technical Radio Committee (Watson-Watt Committee): Sub-committee for...
See the series level description for more information about this record.
Catalogue hierarchy
Over 27 million records
96,521 records
89 records
You are currently looking at the piece: AVIA 39/78
Altimeters: general
You may be interested in
Read stories that share a catalogue subject with this record.
Related records
Records that share similar topics with this record.