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 Experimental Department requesting an order for various lamp bulbs.
| Identifier | ExFiles\Box 166\4\ img146 | |
| Date | 28th November 1932 | |
| X6089 Roy.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.2/AD28.11.32. EXPTL. DEPT. LAMP BULBS Will you please order for us the following Osram lamp bulbs :- 1 doz. 12/14 volt double contact 9 watt bulbs No. S.7172 1/2 doz. double filament double contact 12/16 volt No. S.8006 1 doz. 6/7 volt screw cap 3 watt No. S.7584 Will you also please order from the B.T.H. Co. 4. Mazda 12/16 volt double contact double filament for American type headlamps. Hs{Lord Ernest Hives - Chair}/Wst. | ||