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).
The purchase of a barometer for the Experiment Department.
| Identifier | ExFiles\Box 63\1\ scan0007 | |
| Date | 18th September 1917 | |
| To O.O. from EFC. EFC1/T18.9.17. X.3035 - RE BAROMETER FOR EXPERIMENT DEPT. Will you kindly order up Barometer No. 3991 on Page 539 of Messrs. Townson & Mercer's catalogue herewith. This is for use in the Experimental Department to enable us to make corrections of engine horse powers to standard atmospheric state. EFC. | ||