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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).
Declining to test HL Crane's Fine Motor Oils as they are pure mineral oils.

Identifier  ExFiles\Box 32\4\  Scan080
Date  9th February 1920
  
To Wd.{Mr Wood/Mr Whitehead} From Hs.{Lord Ernest Hives - Chair} C.K.
c. to H.{Arthur M. Hanbury - Head Complaints}

X.1588

Hs{Lord Ernest Hives - Chair}1/LG9.2.20

HL Crane's Fine Motor Oils.

With reference to attached, it appears from this letter that the oils they are offering are pure mineral oils. It has been decided that we do not agree to the use of pure mineral oils on either cars or aero engines, therefore, we think it is a waste of time for them to send any of this oil for us to test.

Hs.{Lord Ernest Hives - Chair}

R.R. 235 B (50 T) (S F 346. 6-8-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2461.
  
  


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