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).
Providing the experimental number for a bonnet and radiator that is 1 inch higher than standard.
| Identifier | ExFiles\Box 66\3\ scan0018 | |
| Date | 18th November 1919 | |
| To RHC{R. H. Coverley - Production Engineer} from DA.{Bernard Day - Chassis Design} C. to Ck.{Mr Clark} DA{Bernard Day - Chassis Design}6/LF18.11.19. With reference to the memo received by you on Saturday morning re Bonnet & Radiator 1" higher than standard the experimental No. for this is X. 3726. DA.{Bernard Day - Chassis Design} | ||