| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| Bührer, Erwin | 1936 – 1979 | Class | |||
| Bührer, Julius | 1917 – 1946 | Class | |||
| Miscellaneous | 1912 – 2019 | Class | |||
| Graf, Marc | 1944 – 1985 | Class | |||
| Homberger, Ernst | 1895 – 1989 | Class | |||
| Horstmann, Alfred | 1937 – 1954 | Class | |||
| Müller, Ernst | 1914 – 1997 | Class | |||
| Schneebeli, Max | 1947 – 1972 | Class | |||
| Board of directors | 1924 – 2008 | Class |
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