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).
Dispatch of drawings Lec.1494 and Lec.1493 for the 'Swallow' Gear Box and its declutching gear.
| Identifier | Morton\M1.9\ img006 | |
| Date | 21th November 1921 | |
| To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} Copy to CJ. " " WR. " " MS. " " HY.{Tom Haldenby - Plant Engineer} ORIGINAL 2 E1/G23/11/21. X3488 RE "SWALLOW" GEAR BOX. We send you herewith drawing Lec.1494 shewing the "Swallow" Gear Box, also Lec.1493 - "Swallow" Declutching Gear. E.{Mr Elliott - Chief Engineer} | ||