Collection of mounted mint specimen or unused postage stamps issued by national postal authorities of Siam/Thailand submitted to the Universal Postal Union (UPU) for dissemination among other member states for reference purposes.
Thailand Postage Stamp Issue: Seventh Anniversary of the Constitution and National Day (2nd Series)
Scope & Content:
Stamps designed by the Fine Arts Department, Bangkok. Manufactured by the Survey Department of the Defense Ministry, Bangkok using a lithography printing process.