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).
Confirming an arrangement to make a set of field coils for an experimental Goshawk dynamo with a different gauge wire.
| Identifier | ExFiles\Box 51\1\ Scan113 | |
| Date | 17th December 1922 guessed | |
| To RHC.{R. H. Coverley - Production Engineer} from EFC. X.4383 EFC5/T121.23. X.4383 - GOSHAWK DYNAMO. This is to confirm that we have arranged in conversation that you will make up a set of field coils for our experimental Goshawk dynamo, wound with No.20 S.W.G. in place of the standard No.19 S.W.G. wire. EFC. | ||