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).
Blueprint of a baffled tank with a perforated plate and flaps.
| Identifier | ExFiles\Box 4\1\ 01-page249 | |
| Date | 7th February 1935 guessed | |
| BAFFLE WITH 1" HOLE AT BOTTOM FLAPS PERFORATED PLATE 3/4" HOLE IN BOTTOM OF DIVISION | ||