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).
Drawing of radiator shutters in the fully open position with two indicating tubes attached.
Identifier | ExFiles\Box 82\1\ scan0326 | |
Date | 12th December 1933 guessed | |
SHUTTERES FULL OPEN TWO INDICATING TUBES ATTACHED TO EDGES OF SHUTTERS | ||