The satisfactory performance and durability of headlamp bulbs after 2000 miles of use.
| Identifier | ExFiles\Box 61a\1\ scan0343 | |
| Date | 20th July 1928 | |
| X4477 To Roy. {Mr H. Royce - Buyer} from Hs {Lord Ernest Hives - Chair} /AJL. Hs {Lord Ernest Hives - Chair} /AJL1/LG20.7.28. HEADLAMP BULBS. X X1357 The headlamp bulbs handed to us under cover of Roy {Mr H. Royce - Buyer} 16/MG29.2.28. for use with Lucas P.100 high power projector have been in use for 2000 miles and have proved satisfactory in every way. I believe there was some doubt about the filaments standing up to road vibrations etc., these however are still intact. Hs {Lord Ernest Hives - Chair} /A.J.Lidsey. | ||
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).