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).
Cross-reference note for the 40/50 distribution box and Phantom cut-out.
| Identifier | ExFiles\Box 65\2\ scan0214 | |
| Date | 31th December 1930 | |
| X.7740. 31.12.30. For further matter relating to :- 40/50 distribution box (general) see X.6068 and Phantom cut-out (general) see X.6123. | ||