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In 1938, thanks to years of work by a remarkable female agent, MI5 ensured a package of British defence plans stayed secret.
Piece
Operation MOSAIC: radiochemical analyses
Catalogue reference: ES 1/1291
What’s it about?
This record is about the Operation MOSAIC: radiochemical analyses dating from 1956 in the series Atomic Weapons Research Establishment: Rowley Collection. It is held at Creating government department or its successor.
Is it available online?
Maybe, but not on The National Archives website. This record is held at Creating government department or its successor.
Can I see it in person?
Not at The National Archives, but you may be able to view it in person at Creating government department or its successor.
Full description and record details
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Reference (The unique identifier to the record described, used to order and refer to it)
- ES 1/1291
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Date (When the record was created)
- 1956
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Description (What the record is about)
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Operation MOSAIC: radiochemical analyses
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Held by (Who holds the record)
- Creating government department or its successor
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Former department reference (Former identifier given by the originating creator)
- 0424 Pt 1B
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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))
- Closed Or Retained 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/C459516/
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
ES 1
Atomic Weapons Research Establishment: Rowley Collection
See the series level description for more information about this record.
Catalogue hierarchy
Over 27 million records
This record is held at Creating government department or its successor
14,194 records
Within the department: ES
Records of the Atomic Weapons Establishment, predecessors and successors
1,900 records
Within the series: ES 1
Atomic Weapons Research Establishment: Rowley Collection
You are currently looking at the piece: ES 1/1291
Operation MOSAIC: radiochemical analyses
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