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).
Accompanying a preliminary production specification and test for a 20 HP Dynamo with a higher output armature.
| Identifier | ExFiles\Box 68\4\ scan0278 | |
| Date | 15th November 1928 | |
| X 5663 To EY. from EFC. c. SFT{Mr Swift}/Mr.Brock. EFC6/T15.11.28. 20 H.P. DYNAMO WITH HIGHER OUTPUT ARMATURE. Herewith please receive acopy of Production Specification & Test for the above. Will you please note that this is only a preliminary specification, having been got out rather hurriedly, and may be subject to modification. EFC. | ||