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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 for sinking dies for specific Wraith model forgings.

Identifier  ExFiles\Box 6\6\  06-page130
Date  12th February 1937
  
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HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}
Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} 3/AP.12.2.37.

WRAITH FORGINGS

With regard to your list of parts made from the solid, we recommend sinking dies only for -

FW.776.
GW.983.
GW.985.
GW.986.
GW.1195.

It is most probable that the others will be altered.

Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}
  
  


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