| Image |
Information |
| BC number(s): 815, 816,
" Radio Day - May 7, 1895. " - two postage stamps. |
| BC number(s): 817, 818, 819,
"Regular - Bulgarian industry." - three postage stamps. |
| BC number(s): 820, 821, 822, 823, 824, 825, 826,
"Heroes - anti-fascists." - seven postage stamps. |
| BC number(s): 827, 828, 829, 830, 831, 832, 833,
"Economic propaganda." - seven postage stamps. |
| BC number(s): 834, 835, 836, 837, 838,
"75 years since the April Uprising of 1876" - five postage stamps. |
| BC number(s): 839, 840, 841,
"60 years since the First Congress of the BSDP (Bulgarian Social Democratic Party) on Buzludzha Peak." - three postage stamps. |
| BC number(s): 842, 843, 844, 845,
"Cheerful change." - four postage stamps. |
| BC number(s): 846, 847,
" III Congress of ORPS. 16.XII.1951" - two postage stamps. |
