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).
Laboratory report showing the appearance of a fractured 13 hrs. spring.

Identifier  ExFiles\Box 119\1\  scan0205
Date  11th May 1939
  
ROLLS-ROYCE LABORATORY REPORT: H1. MJW. S/JM.{Mr Morley} 11.5.39.
M.1840/5. X 1 1/2.
Appearance of fracture of
13 hrs. spring.
  
  


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