Bestandslücken
[N=1917,1-14,16-23,25-26,28-29,36-39; 1918,20,22-29,36,38,40-52; 1919,1-2,5-6,8,16,18,22-23,27,34,36,44,50; 15.1926,17,45; 17.1928,6,18,24,28-29; 18.1929,16,19-20,26; 19.1930,9; 21.1932,2,6,16,20,23,25-26,28,31,36,39,45-46,52; 23.1934,1,4,7,12,32,36,42,50-51]