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 standardization of 48-watt headlamp bulbs.
| Identifier | ExFiles\Box 167\1\ img245 | |
| Date | 2nd March 1938 | |
| By.{R.W. Bailey - Chief Engineer} from Rm.{William Robotham - Chief Engineer} By/RD. RC{R. Childs}? 6116 Rm{William Robotham - Chief Engineer}2/R.2.3.38. 48 Watt Headlamp Bulbs. This is to remind you that it was agreed at the recent Conference to standardise 48 watt head lamp bulbs in all cars forthwith. We have asked Hd.{Mr Hayward/Mr Huddy} to issue a sheet dealing with the changing of these head lamp bulbs in cases of customers complaints. Rm.{William Robotham - Chief Engineer} | ||