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).
Hand-drawn cross-section diagram of a chromium layer on cast iron before honing.
Identifier | ExFiles\Box 132\5\ scan0036 | |
Date | 25th January 1939 guessed | |
CHROMIUM CAST IRON Note ridge at top and taper at bottom. Before Honing | ||