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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).
Scheduling of bearing and oil tests for Duckham's Oils.

Identifier  ExFiles\Box 145\3\  scan0093
Date  17th June 1937
  
Sg.{Arthur F. Sidgreaves - MD} from Rm.{William Robotham - Chief Engineer}

1233

Rm{William Robotham - Chief Engineer}10/R.17.6.37.

re: Duckham's Oils.

Replying to Sg{Arthur F. Sidgreaves - MD}25/E.16.6.37, I believe we explained that we could not run bearing tests and oil tests simultaneously.

We appear to have just about come to the end of bearing tests, and, therefore, shall be able to get some figures on Mr. Duckham's products within the next few weeks. In the meantime, we suggest that information could be obtained if one of the Inspectors would run his car on this oil.

Rm.{William Robotham - Chief Engineer}
  
  


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