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 to obtain one dozen half charge resistance carriers, part number D.72623.
| Identifier | ExFiles\Box 163\6\ img049 | |
| Date | 8th August 1930 | |
| X6016. Roy.{Sir Henry Royce} from EFC. EFC6/ADL8.8.30. Will you please obtain one dozen half charge resistance carriers D.72623. EFC. | ||