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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).
Recommendation to purchase 500 Lodge C. 200 type detachable porcelain sparking plugs for reliability testing.

Identifier  ExFiles\Box 162\6\  img089
Date  1st August 1925
  
To BY.{R.W. Bailey - Chief Engineer} from Hs.{Lord Ernest Hives - Chair}
c. to Mx.{John H Maddocks - Chief Proving Officer}

X4425

Hs{Lord Ernest Hives - Chair}3/LG31. 8. 25.

SPARKING PLUGS. X4425
X8970

We recommend that we purchase 500 Lodge C. 200 type detachable porcelain sparking plugs. These plugs have been run on experimental cars for some time and have given satisfaction. They have the definite advantage that they can be easily taken apart and cleaned. The only way in which we can prove out that they are going to be consistently reliable, is to order a quantity of them. There is no reason why these XXXX plugs should not be despatched on Phantom cars.

Hs.{Lord Ernest Hives - Chair}
  
  


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