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 of an engine crankshaft with multiple views and dimensional annotations.
| Identifier | ExFiles\Box 138\1\ scan0080 | |
| Date | 4th December 1933 guessed | |
| ALL JOURNALS 2.500 DIA, ALL PINS 2.000 DIA, BORE OF PINS 1.120 DIA, VIEW FROM REAR END, 4.20" R.S., B.C., P.S., 3 x 4, 1-16, 2-57, 4.000, .500, 1.700 S, 1.800, 2.600, .975, ROLLS-ROYCE LTD., PRINT ROOM, REF. No., DERBY | ||