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 graph on blueprint paper comparing the viscosities of various oils at different temperatures.
| Identifier | ExFiles\Box 67\4\ scan0352 | |
| Date | 22th July 1927 guessed | |
| COMPARISON OF VISCOSITIES TEMP. °C TIME OF EFFLUX, SECS. CASTROL R MOTORINE C MOBILOIL E COMPRESSOR OIL LARD OIL LOVETOY OIL LATEST SL. ARG. OIL SUBMITTED BY WAKEFIELDS | ||