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).
Table detailing horsepower figures for miscellaneous components and the dynamo drive.
| Identifier | ExFiles\Box 111\2\ scan0232 | |
| Date | 26th August 1937 | |
| -5- 26.8.37. TITLE. REMARKS BENTLEY H'POWER. Miscellaneous. 2¼ 2¼ Dynamo Drive. Assumed no change. 3 3 TOTAL 620¼ 623. | ||