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).
Laboratory report with unetched and etched micrographs of a section from a cast iron brake drum.
| Identifier | ExFiles\Box 120\1\ scan0232 | |
| Date | 19th October 1937 | |
| ROLLS-ROYCE LABORATORY REPORT: H1/EJW.1/GS.19.10.37 SECTION FROM CAST IRON BRAKE DRUM CAST ON STEEL CENTRE PLATE. M.1,447/1 x100 UNETCHED. M.1,447/2 x150 ETCHED. M.1,447 | ||