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).
Notice confirming that Die Cast Aluminium Pistons are now standard.
| Identifier | ExFiles\Box 35\2\ scan 147 | |
| Date | 7th October 1919 | |
| R.H. 235a (500 T) (S F.{Mr Friese} 67) 22-5-19 G 2375 7.10.19. X.3400.-DIE CAST ALUMINIUM PISTONS. These pistons are now standard. RHC.{R. H. Coverley - Production Engineer} | ||