1963-1970 Numbers 1-10, 13-14, 16-18, 20-24, 26-31, 33-50. All paperbound or wrappers (as issued). Missing numbers 11-12, 15, 19 & 32. Library stamps. Scarce journal almost completely devoted to Hymenoptera (two numbers are on Coleoptera) and all parts (except those on Coleoptera) written by Katsuji Tsuneki.