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 illustrating the relationship for an Angle DWT Pendulum Lever, with an overlaid standard letter.
| Identifier | ExFiles\Box 56\4\ Scan055 | |
| Date | 4th February 1927 guessed | |
| Header: ROLLS-ROYCE LTD. DERBY. TELEGRAMS: 'ROYCAR, DERBY.'. TELEPHONE: 1250 (extn 18). Top Right Fields: M, REF., DATE., INVOICE Letter: Dear Sirs, We beg to advise that the services referred to on our invoice cannot be passed for credit as we must adhere to our established conventions. Unless we hear from you to the contrary, we shall assume that you agree to the adjustment shown thereon. Graph Details: Title (along X-axis): ANG DWT PEND LEVER Vertical Title (along Y-axis): ROLLS-ROYCE LTD Y-Axis Labels: 11", 10", 9", 8", 7", 6", 5", 0, 5, 10, 15" X-Axis Labels: 30°, 20°, 10°, 0, 10°, 20°, 30° | ||