Record revealed
Japanese Instrument of Surrender, 1945
After six years of brutal global conflict, this document marked the end of the Second World War.
Piece
Microphones by International Telephone and Telegraph Ltd. for use on wireless sets:...
Catalogue reference: AVIA 23/537
What’s it about?
This record is about the Microphones by International Telephone and Telegraph Ltd. for use on wireless sets:... dating from 1931 in the series War Office and successors: Signals Experimental Establishment, later Signals Research.... 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
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Reference (The unique identifier to the record described, used to order and refer to it)
- AVIA 23/537
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Date (When the record was created)
- 1931
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Description (What the record is about)
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Microphones by International Telephone and Telegraph Ltd. for use on wireless sets: tests
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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)
- SEE Report 550
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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/C2380287/
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 23
War Office and successors: Signals Experimental Establishment, later Signals Research...
See the series level description for more information about this record.
Catalogue hierarchy
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You are currently looking at the piece: AVIA 23/537
Microphones by International Telephone and Telegraph Ltd. for use on wireless sets:...
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