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).
Comparing a Bosch switch with Delco and Westinghouse alternatives.
| Identifier | WestWitteringFiles\G\July1921\ Scan10 | |
| Date | 19th July 1921 guessed | |
| [Handwritten Note] HS{Lord Ernest Hives - Chair} Bosch (Am) switch submitted for R criterion along with Delco of the marquor thinks Bosch is better than W/House but still leaves much to be desired. R [Faint mirrored text from another document] classified the different post on the switch for side sq we should like to have the before co switch returned as soon as possible. [Upside down printed text at bottom] K K 3238 (100.L) (2'H'.128'10-12-30) © 2248 | ||