Reference Code: GBR/0180/RGO 8/29
Scope and Contents
Correspondence concerning clocks, time and the 24-hour time system, including the following material:(1) Non-Observatory clocksMemorandum on the history of 'Joseph Knibb', 17th-century London clockmakers, 1925.Correspondence between Ethel M. Knocker, British Columbia, and Sir Frank Dyson regarding the history of Joseph Knibb, 1925.(2) Non-Observatory chronographs and transitsCorrespondence between Sir Harold Spencer Jones and the Mercantile Marine...
1925 - 1946
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