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).
Graph comparing the viscosities of various oils based on temperature versus efflux time.
| Identifier | ExFiles\Box 72\1\ scan0139 | |
| Date | 1st March 1928 guessed | |
| COMPARISON OF VISCOSITIES Y-Axis: TEMP. °C Values: 80, 70, 60, 50, 40, 30, 20, 10, 0 X-Axis: TIME OF EFFLUX, SECS. Values: 0, 250, 500, 750, 1000, 1250, 1500, 1750, 2000 Curve Labels: CASTROL R MOTORINE C LARD OIL MOBILOIL F COMPRESSOR OIL LARD OIL LOVEJOY OIL LATEST St.{Capt. P. R. Strong} Anns OIL SUBMITTED BY WAKEFIELDS | ||