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).
Request for samples of Bi-focal headlamp bulbs, including a dimensioned sketch.
| Identifier | ExFiles\Box 61a\1\ scan0359 | |
| Date | 17th October 1928 | |
| To OY. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 4477 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}10/LG17.10.28. BIFOCAL LAMP BULBS. 1369 We are anxious to obtain as soon as we can some headlamp bulbs of the Bi-focal type. The dimension of our standard socket is as shewn. We would use double pole holders, both poles as high potential, ~~two~~ leads. Can you get hold of some samples for us please. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} .595" 2.00 | ||