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 grinding specifications and dimensions for two 'Bensport' pistons.
| Identifier | ExFiles\Box 86\2\ scan0053 | |
| Date | 29th August 1933 | |
| HS{Lord Ernest Hives - Chair} 1107 MOD TO EB 500 3.230 DIA -1 3.238 DIA -1 3.240 DIA -1/2 3.2285 DIA -2 3.242 DIA -1/2 3.246 DIA -1/2 PISTON (GRINDING) BENSPORT ROLLS ROYCE. LTD. PRINT ROOM AUG 29 1933 DERBY | ||