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).
Note detailing a four-step heating process with specific temperatures and durations.

Identifier  ExFiles\Box 164\3\  img108
Date  13th January 1938 guessed
  
220°F.{Mr Friese} for 2 Hrs.
250°F.{Mr Friese} for 40 mins.
275°F.{Mr Friese} for 20 mins.
[Illegible] for 30 mins.
BY/RD.
  
  


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