Order for six 6V 3W Osram screw cap light bulbs.
| Identifier | ExFiles\Box 63\1\ scan0220 | |
| Date | 1st April 1930 | |
| X.3035 Roy. {Mr H. Royce - Buyer} from EFC. {E. Fowler Clarke - Electrical Engineer} EFCl/ADL0.4.30. Will you please order - 6 6V. 3W. Screw cap Osram bulbs. Cat. No. S.7584. Required for inspection purposes in test houses. EFC. {E. Fowler Clarke - Electrical Engineer} | ||
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).