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
Origin of the broad arrow (used by the Ordnance Survey as Bench Mark which indicates...
Catalogue reference: OS 3/91
What’s it about?
This record is about the Origin of the broad arrow (used by the Ordnance Survey as Bench Mark which indicates... dating from 1964 in the series Ordnance Survey: Miscellanea. 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)
-
OS 3/91
-
Date (When the record was created)
-
1964
-
Description (What the record is about)
-
Origin of the broad arrow (used by the Ordnance Survey as Bench Mark which indicates the point to which levels have been observed)
-
Note (Additional information about the record)
-
Item open in 1975
-
Held by (Who holds the record)
- The National Archives, Kew
-
Former department reference (Former identifier given by the originating creator)
-
CR 11695/35
-
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))
-
- Topics
- Maps and plans
- Weapons
-
Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C2413200/
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
OS 3
Ordnance Survey: Miscellanea
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
278,790 records
Within the department: OS
Records of the Ordnance Survey of Great Britain
884 records
Within the series: OS 3
Ordnance Survey: Miscellanea
You are currently looking at the piece: OS 3/91
Origin of the broad arrow (used by the Ordnance Survey as Bench Mark which indicates...
You may be interested in
-
-
The story of
Ravenser Odd
Ravenser Odd was a short-lived island in the mouth of the River Humber. It rose from the sea in the early 13th century and had sunk beneath the waves by 1360.
Related records
Records that share similar topics with this record.