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).
Partial blueprint detailing cross-sections and machining instructions for a circular mechanical component.
| Identifier | ExFiles\Box 173\3\ img030 | |
| Date | 16th March 1934 guessed | |
| Not necessary head to sb{Mr Bull/Mr Bannister} TO C/L OF 5/32 DRILL, TO C/L OF 1/8 R, & TO BOTTOM OF 1/16 SAW 3.226 DIA. 3.231 PROJ 1/16 HIGH ON C/L .066 X 1/8" ON DIA. 3.2485 CAM 3.2480 GRIND 2 9/16 1 7/64 1 1/64 1 3/64 35/64 1 13/64 B 40R 7/32 5/32 39/64 R 1/16 R 15/32 47/64 3 1/32 DIA G-G F-F E-E D-D C-C B-B A-A Z Y X | ||