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).
Return and testing of a 20 HP monthly dynamo T6K.
| Identifier | ExFiles\Box 165\6\ img180 | |
| Date | 13th December 1928 | |
| To Mr. Brock. from EFC. X5661 EFCL/13.12.28. Herewith we return 20 H.P. monthly dynamo T6K. This has been tested and found quite O.K. in all respects EFC. | ||