Germany - East 1977 Sozphilex 77 Stamp Exhibition perf m/sheet (World Youth Song) unmounted mint, SG MS E1965
Germany - East 1977 Sozphilex 77 Stamp Exhibition perf m/sheet (World Youth Song) unmounted mint, SG MS E1965
Germany - East 1977 Sozphilex 77 Stamp Exhibition perf m/sheet (World Youth Song) unmounted mint, SG MS E1965