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 dimensions for four different bonnet models.
| Identifier | ExFiles\Box 66\3\ scan0143 | |
| Date | 30th December 1926 | |
| D 30-12-26 BONNET DIMENSIONS E.72755 V.{VIENNA} SERIES 25.625 23.000 21.150 27.625 46.500 E.73055. BEX. W.SERIES 26.900 21.700 22.100 28.600 46.500 E.74637. E.A.C.VIII 12 EX 26.625 21.600 22.100 28.600 44.875 E 75120 E.A.C.VIII 14 EX. 26.625 21.600 22.100 28.600 45.050 ALL HEIGHTS ARE GIVEN FROM TOP OF FRAME TO ¢ BONNET HINGES | ||