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).
Plan view of a radiator showing the water outlet.
| Identifier | ExFiles\Box 11\2\ 02-page020 | |
| Date | 19th December 1928 guessed | |
| PLAN OF RADIATOR SHOWING WATER OUTLET 20 | ||