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 detailing the dimensions for four different bonnet series.
| Identifier | ExFiles\Box 102\6\ scan0053 | |
| Date | 30th December 1926 | |
| o 30.12.26, BONNET DIMENSIONS., E.72755 V.{VIENNA} SERIES, 25.625, 20.600, 46.500, 21.150, 27.625, E.73055. 8EX. W.SERIES, 26.900, 21.700, 46.500, 22.100, 28.600, E74637 - E.A.C.VIII 12 Ex, 26.625, 21.600, 44.875, 22.100, 28.600, E 75120 E.A.C.VII 14 Ex., 26.625, 21.600, 45.050, 22.100, 28.600, ALL HEIGHTS ARE GIVEN FROM TOP OF FRAME TO ℄ BONNET HINGES | ||