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).
Directive regarding the ordering of Peto and Radford batteries and the manufacturing of bevels.
| Identifier | ExFiles\Box 18\6\ Scan302 | |
| Date | 12th September 1921 guessed | |
| -5- (21) PETO AND RADFORD BATTERIES. Mr.Clarke was asked by CJ. to order still further Peto and Radford Batteries. W O R K S. (1) 14/52 BEVELS. Agreed that 25 pairs only be made. | ||