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
Voice valves used in Porton light respirator: analysis of performance of production...
Catalogue reference: AVIA 23/894
What’s it about?
This record is about the Voice valves used in Porton light respirator: analysis of performance of production... dating from 1944 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
-
Reference (The unique identifier to the record described, used to order and refer to it)
- AVIA 23/894
-
Date (When the record was created)
- 1944
-
Description (What the record is about)
-
Voice valves used in Porton light respirator: analysis of performance of production samples of outlet valve L.3
-
Held by (Who holds the record)
- The National Archives, Kew
-
Former department reference (Former identifier given by the originating creator)
- SRDE Report 918
-
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))
-
Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C2380644/
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
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...
1,161 records
Within the series: AVIA 23
War Office and successors: Signals Experimental Establishment, later Signals Research...
You are currently looking at the piece: AVIA 23/894
Voice valves used in Porton light respirator: analysis of performance of production...
You may be interested in
-
-
Record revealed
Report on the British Indian Army, 1943
This Second World War War Office document assessed the British Indian Army's battle readiness and made recommendations for its development. -
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.
Related records
Records that share similar topics with this record.