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).
Order for various sized carburetter air filters for different engine models.
| Identifier | ExFiles\Box 93\2\ scan0153 | |
| Date | 19th March 1936 | |
| To Roy.{Sir Henry Royce} X308 Hs{Lord Ernest Hives - Chair}/Wym.{G. Harold Whyman - Experimental Manager}10/KW.19.3.36. Carburetter Air Cleaners. Will you please order from Messrs. Smith & Sons Ltd. some samples of Smith's Metal Wool Air Filters, similar to the ones recently supplied for the tank engines. We require 3 filters for Phantom III, dimensions 8.740" outside dia., 6.600" inside dia., and 1.700" long, 1 for 25/30 HP., 5.750" outside dia., 3.720" inside dia., 2.800" long, and 1 for Bentley, 6.800" outside dia., 3.720" inside dia., and 2.800" long. Hs{Lord Ernest Hives - Chair}/G.H.Whyman. | ||