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).
Proposal for a rivet-less steel bonnet, showing cross-sections of the top and side hinges.
| Identifier | WestWitteringFiles\V\March1931-September1931\ Scan304 | |
| Date | 8th July 1931 | |
| MAXIMUM OPENING OF BONNET THIS FIXED PIECE CAN BE RAISED THUS & PLATED OR CAN BE FLUSH & PAINTED. SECTION OF TOP HINGE. CHROMIUM PLATED. SECTION OF SIDE HINGE. PROPOSED STEEL BONNET WITHOUT RIVETS. | ||