Holdings
1.1907,1-44; 4.1910,1-52; 10.1916,1-47; 11.1917,1-50; 12.1918,1-48; 13.1919,1-3u.5-8u.11-23u.25-31u.33u.35-52; 14.1920,2u.13-14u.16u.18u.20u.23-24u.26-28u.31u.39-42u.45; 16.1922,1-2u.4-29u.31-34u.36-52; 17.1923,1-9u.11-34u.37-43u.45-52; 18.1924,1u.4-10u.12u.14-40u.45u.51/52; 19.1925,1u.6-7u.9u.14u.18u.20-23u.26-28u.30-31u.33-35u.37-38u.48u.50-52; 20.1926,1-3u.7u.9-11u.15-23u.25-27u.30-33u.35-40u.47u.51-52; 23.1929,1u.3-5u.7-8u.10-13u.15-43u.46-56/57; 24.1930,1-54; 26.1932,1-53; 27.1933,1-30u.38-54; 28.1934,20-36u.38u.41-44u.46-48u.52; 30.1936,1u.8-11u.13-19u.23-28u.30-37u.40-48u.50-53; 31.1937,1-12u.14-54; 32.1938,1-19u.21-29u.31-34u.36-40