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 diagram illustrating a crack failure on a Bentley piston, including a table of dimensional data.
| Identifier | ExFiles\Box 86\2\ scan0050 | |
| Date | 29th August 1933 | |
| Hs.{Lord Ernest Hives - Chair} 1116 BENTLEY PISTON FAILURE A.{Mr Adams} DIA B. DIA C. DIA D.{John DeLooze - Company Secretary} DIA CRACK. PISTON GRINDING | DIA A.{Mr Adams} | DIA B. | DIA C. | DIA D.{John DeLooze - Company Secretary} Mx.{John H Maddocks - Chief Proving Officer} TYPE | 3.227 | 3.231 | 3.240 | EB.500 | 3.230 | 3.238 | 3.247 | 3.248. ROLLS ROYCE, LTD. PRINT ROOM AUG 29 1933 DERBY. | ||