| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| GFA 11/900925-900927 | Optimat | 1990 | Item: 3 photos | digitized | prolonged period of protection | |
| GFA 11/900928-900929 | Optimat | 1990 | Item: 2 photos | digitized | prolonged period of protection | |
| GFA 17/900925 | Optimat | 1990 | Item: 1 photo | prolonged period of protection | |
| GFA 17/900926 | Optimat | 1990 | Item: 1 photo | prolonged period of protection | |
| GFA 17/900927 | Optimat | 1990 | Item: 1 photo | prolonged period of protection | |
| GFA 17/900928 | Optimat | 1990 | Item: 1 photo | prolonged period of protection | |
| GFA 17/900929 | Optimat | 1990 | Item: 1 photo | prolonged period of protection | |
| GFA 9/3.43 | GF intern, Nr. 43, April 1990 | 1990 | File: 1 file | digitized | public | |
| GFA 9/3.49 | GF intern, Nr. 49, September 1991 | 1991 | File: 1 file | digitized | public |