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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).
Request to the Champion Sparking Plug Co. for a trial supply of L8S sparking plugs.

Identifier  ExFiles\Box 162\3\  img034
Date  4th November 1936
  
r6 000

Rm{William Robotham - Chief Engineer}/Wat.33/JH.

4th November 1936.

The Champion Sparking Plug Co.,
83, Pall Mall,
London.S.W.1.

Dear Sirs,

Will you please arrange to supply us for experimental trial with 2 doz. L8S sparking plugs which, it is understood will run hotter and be less susceptible to oiling up than the LB.10.

These plugs should have a threaded terminal shank at least ¼" long and 3BA thread or similar size.

Yours faithfully,

FOR ROLLS-ROYCE LTD.
  
  


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