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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).
Letter to the Ethyl Gas Corporation regarding their work on overcoming the attack on exhaust valves by Ethyl.

Identifier  ExFiles\Box 173\3\  img173
Date  7th May 1934
  
Sg.{Arthur F. Sidgreaves - MD}31/KW.

7th May, 1934.

Mr. Heron,
The Ethyl Gas Corporation,
Detroit, Michigan,
U.S.A.

Dear Mr. Heron,

We were interested to hear from Mr. Robotham of the work you are doing to overcome one of our major problems - the attack on exhaust valves by Ethyl.

We should like to thanks you for the courtesy extended to Mr. Robotham by your Corporation.

Yours sincerely,
  
  


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