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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).
Instruction to apply an Anodio Oxidisation Process to aluminium petrol filter covers to prevent corrosion.

Identifier  ExFiles\Box 135\2\  scan0162
Date  12th April 1937
  
1138 Copy for File

HPS.{Horace Percy Smith - Experimental Factory Mgr}
c. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}

BY/HEB.{H. Biraben}12/M.12.4.37.

BENTLEY CHASSIS.

PETROL FILTER ON 2ND.CROSSMEMBER.
SEC : 7140.

We have instructed by Alteration No:16735/F.{Mr Friese}
that Alum; Filter Covers F.{Mr Friese} 88175. should be given an " Anodio Oxidisation Process", to prevent corrosion.

Please fit new covers to Expl: Cars.
and Wraith III.

It applies also to Phantom III.. 25/30 HP..

BY/HEB.{H. Biraben}
  
  


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