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).
Business card for Otto J. Badertscher of the Badertscher Vacuum Brake Co. Ltd. with handwritten notes.
| Identifier | ExFiles\Box 120\3\ scan0003 | |
| Date | 19th May 1927 guessed | |
| Hotel Cecil. Stück.{Mr Clark} OTTO J.{Mr Johnson W.M.} BADERTSCHER MECH. ENGR. LIC. PRESIDENT AND GENERAL MANAGER BADERTSCHER VACUUM BRAKE CO. LTD. ZURICH SWITZERLAND | ||