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).
Letter discussing progress on the R.R.P.100 'Open' type headlamps and their special glass.
| Identifier | ExFiles\Box 166\9\ img136 | |
| Date | 21th September 1937 guessed | |
| 2. We should also be pleased, to hear what progress is being made with the R.R.P.100 type 'Open' type headlamps, which are being made, and fitted with a special glass, for widening the lower portion of the beam. Yours faithfully, for ROLLS - ROYCE LTD. | ||