Solidarity with Vietnam (1l)
Solidarity with Vietnam (50c)
Balkans Football Championship
Recovery of Dobrudja from Rumania (4l)
Recovery of Dobrudja from Rumania (7l)
Reacquisition of Macedonia
30th Esperanto jubilee congress
Founding of the Social Democratic Youth Association
40th anniv of Russian revolution
Second "team" manned space flight
International Int. Trade-Union Committee for Solidarity with Vietnam
50th anniv of October revolution
Railway-Ferry Service between Varna and Ilyichevsk
Moscow 1980 olympics postcard
map on piece and cancel
Security and co-operation in Europe
125th anniv of European Danube commission
35th anniv of frontier guards
10th anniv of 1st meeting for co-op. in Europe
700th anniv of Swiss confederation
25th anniv of space research
PHARE Programme telecommunications
Negotiations with the European Union in 2000
Map on cancel
Invitation to join NATO - Souvenir sheet
Map on cancel
120 anniv union Bulgaria & East Rumelia
10 years of Bulgarian Antarctic cartography
150th Birthdays of Military Leaders
Bulgarian Regions- North East
Bulgarian Regions: North Central
145th Anniv. of the First Railway Line in Bulgaria
International Day of the Black Sea
Bulgarian Regions - North West
Nature Reserve Parangalica, Rila Mountains
International Year of Chemistry
Postal Vehicles
Map on cover
70th Ann. of the Rescue of the Bulgarian Jews
Map on label
Bulgarian Regions - South West
International Philatelic Salon SOFIA 2013
Bulgarian Regions - South Central
830th Anniversary of Boyar Uprising against Byzantine Rule
Bulgarian Regions - South East
Bird migration - White Stork, joint issue with Israel
Varna - European Youth Capital 2017
Lighthouses of the Bulgarian Black Sea coast
80th Anniversary of Union of Bulgarian Philatelists
180th Anniversary of Port of Lom
50th Anniversary of Bulgarian Air Traffic service Authority
Robert Scott, Explorer of Antarctica
Tramways of Sofia, 120th Anniversary
Three Seas Initiative Conference, Sofia
Georgi Nadjakov, Physicist
Astronomical Observatories in Bulgaria
