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).
Confirming a mackintosh is not at the Clan Foundry.
| Identifier | ExFiles\Box 143\2\ scan0114 | |
| Date | 10th April 1941 | |
| To LP{Mr Lappin}/JL. from Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} 1204 Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}3/ET.10.4.41. The mackintosh you enquired about is not at the Clan Foundry. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||