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).
Photomicrograph comparing materials from 'Brunton's Jupiter' and 'Shipman's' at 150 diameters magnification.

Identifier  ExFiles\Box 17\6\  Scan277
Date  13th April 1934
  
R.R. 403 (5m) (62316 13-4-34) J.H.,Ltd.
ROLLS-ROYCE LTD.
LABORATORY.
PHOTOMICROGRAPH NO A1.101
MAGNIFICATION : 150 DIAMETERS.
Brunton's "Jupiter".
Shipman's.
  
  


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