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 of a 27HP Humber 5 Seater Saloon, detailing the luggage and spare wheel compartments.
| Identifier | ExFiles\Box 114\4\ scan0227 | |
| Date | 1st January 1938 guessed | |
| 22" 39" ENTRANCE 39" SPARE WHEEL IN SEPARATE COMPARTMENT 15" 16" 7" 22" 27 H.P. HUMBER £495. 5 SEATER SALOON. FLOOR AREA 39" x 22" DOOR FORMS LID{A. J. Lidsey} FOR EXTRA LUGGAGE | ||