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).
Specification of lamp bulbs for R.100 headlamps on Wraith, Phantom III & Bentley models.
| Identifier | ExFiles\Box 167\1\ img328 | |
| Date | 1st June 1939 | |
| c. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} 6116 BY/RD.6/B.1.6.39. c. a/3 WRAITH, PHANTOM III & BENTLEY - R.100 HEADLAMPS. Lucas inform us that the lamp bulbs used in the R.100 Headlamps are :- 12v. 48 watt. XHE Osram "V" Filament Shadow Etched. (Large Bayonet Cap). BY/RD. | ||