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 of distillation curves comparing various American gasolines and blends.
| Identifier | ExFiles\Box 50\3\ Scan063 | |
| Date | 1st May 1921 | |
| American Gasoline Distillation Curves. Y-Axis: Degrees Fahrenheit. X-Axis: 93 cc. Graph Labels: SOCONY SINCLAIR TEXAS 50% GAS - 50% BENZOL TYDOL GULF ATLANTIC END PT. 438°F. {Mr Friese} Table: Specific Gravity at 60°F Socony .747 Gulf .732 Atlantic .735 Tydol .735 Texas .745 Sinclair .738 50% Gas ? 50% Benzol .757 Legend: ----- ENGLISH LOW GRADE PETROL WITH 10% KEROSENE. - SP. {Mr Spinney} GR. {George Ratcliffe} .757. -.-.-.- FEDERAL SPECIFICATION ADOPTED NOV. 25. 1919. Stamp Text: ROLLS-ROYCE RECEIVED MAY 1 1921 SPRINGFIELD, MASS. | ||