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).
Page 2 of a document concerning the position, type, and gap of plugs and compressions.
| Identifier | ExFiles\Box 33\3\ Scan144 | |
| Date | 1st January 1948 | |
| -2- settled re position, type and gap of plugs etc. compressions". EP{G. Eric Platford - Chief Quality Engineer}/Thn. S463 G (50-51-0) 964 H'S(L.001) '48'H | ||