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).
Blueprint showing a cross-section of a car door with details of the rubber sealing strips.
| Identifier | ExFiles\Box 138\1\ scan0290 | |
| Date | 28th January 1938 guessed | |
| RUBBER STRIP FIXED TO TOP & SIDES OF DOOR FLANGES. INSIDE DOOR SEAL. | ||