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).
Instructions for forwarding a new matrix unit and returning a damaged one by air mail.
| Identifier | ExFiles\Box 97\4\ scan0059 | |
| Date | 18th October 1938 | |
| 400b WH q 18.10.38. WALLER VINGT-et-un, CHATEAUROUX. FORWARDING NEW MATRIX UNIT WITH INSTRUCTIONS FOR FITTING STOP RETURN DAMAGED MATRIX UNIT AIR MAIL PARTS REQUIRED 9.B.V. STEADMAN. | ||