Congresses stamp catalogue

13th UPU Congress

Roses

Red Cross

10th Hegel Congress In Moscow

Congress of Versailles

European Congress IPTT

Universal Postal Congress Lausanne

World Congress Press

International Congress for Byzantine Studies

International Chamber of Commerce conference

World Symposium pacemakers

Road construction conference

Congress philatelic societies

Notarial anniversary conference

International Criminal Law Congress

KSZE Conference

International Congress of the Concrete Industry Trial

Federal Congress ÖGB

10th world forestry congress

Congress stamp collectors

Savings Congress

International Congress of Geographers

EOQC Congress

5th world trade union congress

Moritz Kaposi

World Trade Unions Federation

50 years of the United Nations

Afro-Asian Bandung Conference 1945-1980

Congress astronauts

Meeting of the international medical association

Eur. Congress IPTT

Dove of peace and map of Europe

International Congress of Surgeons 27

World Congress lay apostolate

Summit meeting for the Mediterranean

Spanish-American Congress post

Inter-American Congress of Cities

Congressional lawyers

Kiwanis Convention

World vascular surgery

12th World Congress on Soil Science

UPU Congress Hamburg

Socialist postal service

ESPANA 82

Ski Association Congress

Komsomol-Congress

Crime Fighting Congress

ESPAMER 87

Nesebar

Congress of Philatelic Associations

Economy Congress in Izmir

National Congress young activists

19th International Botanical Congress in Shenzhen

Cultural Congress

9th European Botanical Gardens Congress

7th Economic Congress Latin America

Two stamps of Cuba

Congress of the European Association of Carnival Cities

FILATEM 86

Eucharistisch Congres Barcelona