Rolls-Royce Archives
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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).
Blueprint showing a cross-section of a machined part with dimensional annotations.

Identifier  ExFiles\Box 171\3\  img161
Date  3rd May 1921
  
No, OPERATION, MACHINE, TOOL No, PIECE No CAST HERE, .050R, .150, .125, 2.125, 9.300, 3.300 +2 -1, 1.050 +2 -1, .812 +2 -1, 1.750 +2 -1, .300, A, R.R. BDC (89017S)-400. (3. 5. 21.)
  
  


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