In-16 (cm. 18), 23 volumes, green editorial binding, gold title on spine, illustrations, many volumes with ribbon bookmark.The set includes:1952 Band I A1953 Band I B1955 Band II A1958 Band III A1960 Band II B1962 Band IV A1965 Band III B1967 Band V A1970 Band VI A1973 Band IV B1973 Band VII A1976 Band VIII1979 Band IX1981 Band X1983 Band XI1988 Band XII1991 Band XIII1993 Band XIV1997 Band XV2000 Band XVI2003 Band XVII2006 Band XVIII2009 Band XIXIn very good antiquarian condition.