Focus on
Olga Gray and the Woolwich Arsenal Spy Ring
In 1938, thanks to years of work by a remarkable female agent, MI5 ensured a package of British defence plans stayed secret.
Piece
Cold cathode tubes: experimental production in Germany
Catalogue reference: AVIA 22/852
What’s it about?
This record is about the Cold cathode tubes: experimental production in Germany dating from 1945-1948 in the series Ministry of Supply: Registered Files. 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 22/852
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Date (When the record was created)
- 1945-1948
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Description (What the record is about)
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Cold cathode tubes: experimental production in Germany
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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)
- 237/FUZE/75
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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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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C2185020/
Series information
AVIA 22
Ministry of Supply: Registered Files
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...
3,426 records
Within the series: AVIA 22
Ministry of Supply: Registered Files
You are currently looking at the piece: AVIA 22/852
Cold cathode tubes: experimental production in Germany
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