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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 for the chemical analysis of 8 cast iron rings, with one undergoing a full analysis and the others checked for consistency.

Identifier  ExFiles\Box 148\1\  scan0282
Date  9th November 1940
  
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To HL/BPS. from Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby}

Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby}2/ET.9.11.40.

Will you please analyse the 8 cast iron rings handed to
you on 8.11.40 by Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby}

One of the rings to have a complete analysis , the others
to be checked to see that they are the same.

Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby}
  
  


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