| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| GFA 28/11 | Lehrlinge 1915 | 1915 – 1919 | File: 1 file | prolonged period of protection | |
| GFA 28/12 | Lehrlinge 1916 | 1916 – 1920 | File: 1 file | prolonged period of protection | |
| GFA 28/13 | Lehrlinge 1917 | 1917 – 1921 | File: 1 file | prolonged period of protection | |
| GFA 28/14 | Lehrlinge 1918 | 1918 – 1822 | File: 1 file | prolonged period of protection | |
| GFA 28/15 | Lehrlinge 1919 | 1919 – 1823 | File: 1 file | prolonged period of protection | |
| GFA 28/16 | Lehrlinge 1920 | 1920 – 1924 | File: 1 file | prolonged period of protection | |
| GFA 28/17 | Lehrlinge 1921 | 1921 – 1925 | File: 1 file | prolonged period of protection | |
| GFA 28/18 | Lehrlinge 1922 | 1922 – 1926 | File: 1 file | prolonged period of protection | |
| GFA 28/19 | Lehrlinge 1923 | 1923 – 1927 | File: 1 file | prolonged period of protection | |
| GFA 28/20 | Lehrlinge 1924 | 1924 – 1928 | File: 1 file | prolonged period of protection | |
| GFA 28/21 | Lehrlinge 1925 | 1925 – 1929 | File: 1 file | prolonged period of protection | |
| GFA 28/22 | Lehrlinge 1926 | 1926 – 1930 | File: 1 file | prolonged period of protection | |
| GFA 28/23 | Lehrlinge 1927 | 1927 – 1931 | File: 1 file | prolonged period of protection | |
| GFA 28/24 | Lehrlinge 1928 | 1928 – 1932 | File: 1 file | prolonged period of protection | |
| GFA 28/25 | Lehrlinge 1929 | 1929 – 1933 | File: 1 file | prolonged period of protection | |
| GFA 28/26 | Lehrlinge 1930 | 1930 – 1934 | File: 1 file | prolonged period of protection | |
| GFA 28/27 | Lehrlinge 1931 | 1931 – 1935 | File: 1 file | prolonged period of protection | |
| GFA 28/28 | Lehrlinge 1932 | 1932 – 1936 | File: 1 file | prolonged period of protection | |
| GFA 28/29 | Lehrlinge 1933 | 1933 – 1937 | File: 1 file | prolonged period of protection | |
| GFA 28/30 | Lehrlinge 1934 | 1934 – 1938 | File: 1 file | prolonged period of protection | |
| GFA 28/31 | Lehrlinge 1935 | 1935 – 1939 | File: 1 file | prolonged period of protection | |
| GFA 28/32 | Lehrlinge 1936 | 1936 – 1940 | File: 1 file | prolonged period of protection | |
| GFA 28/33 | Lehrlinge 1937 | 1937 – 1941 | File: 1 file | prolonged period of protection | |
| GFA 28/34 | Lehrlinge 1938 | 1938 – 1942 | File: 1 file | prolonged period of protection | |
| GFA 28/35 | Lehrlinge 1939 | 1939 – 1943 | File: 1 file | prolonged period of protection |