The 25th Anniversary commemorative stamps issued in 1992 mark a mature phase in the evolution of ASEAN, reflecting the organization’s expansion from political dialogue into multi-sectoral regional cooperation. The designs unite the national flags of member states within the ASEAN emblem, while individual denominations highlight key areas of collaboration including culture, tourism, transport and communications, and agriculture. This thematic diversification illustrates ASEAN’s broadened functional agenda by the early 1990s, as economic integration and people-to-people connectivity gained prominence. These stamps constitute philatelic evidence of ASEAN’s transition from symbolic unity to structured developmental cooperation, documenting the organization’s role as an increasingly integrated regional framework on the eve of deeper institutional transformation.
Date of issue : 8 August, 1992
Purpose :
To commemorate the 25th Anniversary of the Association of South-East Asian Nations (ASEAN)
Denominations and Quantity :
- 2.00 Baht – 2,000,000 pieces
- 3.00 Baht – 1,000,000 pieces
- 5.00 Baht – 1,000,000 pieces
- 7.00 Baht – 1,000,000 pieces
Size : 27 × 45 mm. (Vertical)
Designs :
Illustrate flags of ASEAN member countries comprising Brunei, Indonesia, Malaysia, Philippines, Singapore and Thailand, encircled in an association’s logo, showing close international cooperation among member countries.
Colour : Multi-colour
Printing process : Lithography
Sheet composition : 50 stamps per sheet
Individual stamp designs
2.00 Baht :Cultures and Sports
3.00 Baht : Tourism
5.00 Baht :Transports and Communications
7.00 Baht :Agriculture

Designer :
Mr. Charnya Boonyasakdi and Mr. Udom Niyomthanun
Printer :
Joh. Enschedé en Zonen Grafische Inrichting B.V., Netherlands
First Day Cover :
21.00 Baht
Quantity :
14,000 covers
Designer :
Mr. Thananchai Promkaew

