RGO Archives/RGO 8 contains:
<-- See earlier
144	Correspondence with Cambridge University
145	Correspondence with 'The Engineer'
146	Correspondence on time signals
147	Correspondence on time balls
148	Correspondence on longitude
149	Correspondence on clocks and chronographs
150	Correspondence on a total eclipse
151	Correspondence on grant to Mrs Jackson
152	Insurance policy
153	Double stars journals
154	Observations of luminous meteors
See later -->

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Papers of Frank Dyson

Title	Correspondence on clocks and chronographs
Reference	RGO 8/149 (former reference: Z9)
Covering Dates	1880–1937
Extent and Medium	1 bundle

Content and context

Correspondence regarding clocks and chronographs, including correspondence with the Japanese Consul and E. Dent and Co. on a chronograph for the Japanese Government, 1880; and correspondence relating to various inventions associated with clocks, 1886-1937, including Mr Schoof's gravity escapement (1897), the Synchronome Co. Ltd's synchronised pendulum (1937), Mr Gordon's pneumatic clock system (1886), and R.W. Nichol's pendulum (1913).

Further information

Indexed

Index Terms

Japan

Time Measuring Instruments

Synchronome Company

E Dent and Co

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