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 a machined shaft with threaded ends and varying diameters.
| Identifier | ExFiles\Box 60\4\ Scan205 | |
| Date | 1st February 1934 | |
| EL3, 1.175 +10, 3.825 +-10, 1.000 -.10, .375 +-10, TURN .155 DIA, SCREW 3BA, 34.8 T.P.I R.H, .375 +-10, .300 +-10, .025 AT 45° +-10, 12°, .180 DIA -.5, TURN .244 DIA SCREW, .250 DIA 26 T.P.I. R.H., TURN .250 DIA, .250 SQ, TURN .178 DIA, SCREW 2BA 31.4 T.P.I. R.H., .025 +-10 AT 45° +-2°, 1 OFF. M.S., ROLLS-ROYCE, LTD, PRINT ROOM, FEB 1 1934, DERBY | ||