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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Proposed oil test using Duckham's Oils on either a Phantom III or 25/30 model car.

Identifier  ExFiles\Box 145\3\  scan0098
Date  18th June 1937
  
S/W

To Rm.{William Robotham - Chief Engineer} from Sg.{Arthur F. Sidgreaves - MD} re Duckham's Oils. Sg{Arthur F. Sidgreaves - MD}13/E18.6.37

Thanks for Rm{William Robotham - Chief Engineer}10/R.17.6.37. It is quite correct that some time ago you told me that you could not run the bearings test and the oil test at the same time but, in view of Duckham's letter I wanted to know what we could do now, and I have written him as per the enclosed copy.

We could easily run an Inspector's car on Duckham's oil. Would you tell me whether you prefer it to be on a P.III or a 25/30 or one of each, and also tell me the correct grade or designation of Duckham's oil you want us to run on.

Sg.{Arthur F. Sidgreaves - MD}

Enc. Copy of Sg{Arthur F. Sidgreaves - MD}8/E18.6.37
  
  


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