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).
Advertising leaflet for the 'Winterfront' automatic radiator shutter.
| Identifier | ExFiles\Box 78\1\ scan0306 | |
| Date | 21th January 1921 guessed | |
| WINTERFRONT Reduces the use of the choke and formation of carbon. Increases mileage on gasoline and conserves lubricating oil. Maximum driving power is quickly attained and Winter driving made more comfortable by the use of the WINTERFRONT Your Motor Will Run Better with a WINTERFRONT TRADE MARK Automatic Radiator Shutter PATENTED OCT. 20, 1914 APR. 11, 1916 JUNE 8, 1920 OTHER PATENTS PENDING PINES MANUFACTURING CO. 408-10 N. SACRAMENTO BLVD. CHICAGO | ||