Reference Code: GBR/0180/RGO 8/41
Scope and Contents
Correspondence relating to mirrors, micrometers and spectrophotometry, including the following material:Correspondence with J. Cooke and Sons on a speculum mirror, 1912.Correspondence with Troughton and Simms on a Duplex micrometer, 1910-1912.Correspondence with the Cambridge Instrument Co. and the National Physical Laboratory on spectrophotometry, 1926-1930.Correspondence concerning a new measuring micrometer for the Cookson Plates and a second micrometer,...
1912 - 1931
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