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).
List of chassis numbers and codes cross-referenced with corresponding coil types.
| Identifier | ExFiles\Box 49\5\ Scan044 | |
| Date | 23th January 1924 | |
| Chassis. Coil. 49-GB. Old type G. {Mr Griffiths - Chief Accountant / Mr Gnapp} G.1. 1 PP. 2 GII. 40/50 old std. stabalite. 3GII. 3 PP. 4 GII. TS 4. 5 GII. 3 TG 3. 6 GII. TS 5. 7 GII. TR {Capt. F. W. Turner - Finance} 1. 23.1.24. EPC. | ||