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).
Blueprint of a flywheel ball bearing housing with key dimensions.
| Identifier | ExFiles\Box 85\2\ scan0045 | |
| Date | 1st November 1933 guessed | |
| HS{Lord Ernest Hives - Chair} 1184 6.750 DIA 4.300 DIA .400 .200 Rd .400 Rd OTHER DIMENSIONS TO GB 747 BALL BEARING HOUSING - FLYWHEEL - BEN: | ||