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).
Sectional drawing of a differential casing with dimensional annotations.
| Identifier | ExFiles\Box 126\2\ scan0162 | |
| Date | 18th November 1938 guessed | |
| DIFFERENTIAL CASING SS{S. Smith}242 B B SECTION A-A 1 3/8 DIA 3/8" 4 5/16" DIA 2 3/32" DIA 2 5/16 DIA 1 15/16 DIA 1/16" 1/8 R 2 1/32" 3 9/32" 5 7/16" (SKF EN3.) 111202B CASE 112329, 1/8 CHFR AT 45º 2 1/2" | ||