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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).
The testing of tungsten points for battery ignition, requesting prolonged tests on an experimental car.

Identifier  ExFiles\Box 35\5\  scan 096
Date  16th February 1920
  
To RHC.{R. H. Coverley - Production Engineer} from Ck.{Mr Clark}

X 2894

Ck{Mr Clark}4/T16.2.20.

X.2894 - TUNGSTEN POINTS FOR BATTERY IGNITION.

We are handing you herewith the tungsten points which you recently fitted up for us from tungsten rivets received from U.S.A. We have run these for six hours on our standard ignition on the bench and so far they have been satisfactory.

We would like, however, for these to be put on an experimental car for further prolonged tests.

Will you kindly have this done.

Ck.{Mr Clark}
  
  


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