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
Infra-red and electronics: optical instruments
Catalogue reference: AVIA 39/84
What’s it about?
This record is about the Infra-red and electronics: optical instruments dating from 1945 in the series Operations and Technical Radio Committee (Watson-Watt Committee): Sub-committee for.... It is held at The National Archives, Kew.
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Full description and record details
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Reference (The unique identifier to the record described, used to order and refer to it)
- AVIA 39/84
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Date (When the record was created)
- 1945
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Description (What the record is about)
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Infra-red and electronics: optical instruments
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Held by (Who holds the record)
- The National Archives, Kew
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Former department reference (Former identifier given by the originating creator)
- 9.3
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Legal status (A note as to whether the record being described is a Public Record or not)
- Public Record(s)
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Closure status (Whether the record is ‘open’ (available to the public) or ‘closed’ (not available due to a legal exemption))
- Open Document, Open Description
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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))
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- Topics
- Radio and television
- Computing
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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C2229635/
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
This record is held at The National Archives, Kew
96,520 records
Within the department: AVIA
Records created or inherited by the Ministry of Aviation and successors, the Air...
89 records
Within the series: AVIA 39
Operations and Technical Radio Committee (Watson-Watt Committee): Sub-committee for...
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Infra-red and electronics: optical instruments
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