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).
Confirmation of a telegram regarding an urgent test on an epicyclic ball bearing.
| Identifier | ExFiles\Box 38\6\ Scan067 | |
| Date | 30th September 1918 | |
| X.3383 CONFIRMATION OF TELEGRAM. 30th September, 1918 ROYCAR DERBY. HIVES TEST OF EPICYCLIC WITH. BALL BEARING REPLACING ROLLER ON PLANETS MOST URGENT AND IMPORTANT. ROYCE. | ||