Correspondence on the reversible transit circle, 1929 - 1939
Scope and Contents
Correspondence with the Admiralty, the National Physical Laboratory and various firms, such as Troughton and Simms, regarding the reversible transit circle.
- 1929 - 1939
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1 envelope(s) (1 envelope)
Language of Materials
Former / Other Reference
Finding aid date
- From the Series: Dyson, Frank Watson, Sir, 1868 - 1939 (Knight, astronomer) (Person)