Stamps designed by S. Sothornboon, P. Sirisuwan, C. Bunyasak and U. Upalakalin. Manufactured by Joh. Enschede en Zonen, Netherlands using a lithography printing process.
Stamps designed by W. Bumroongraj, P. Chavananon, S. Sothornboon and C. Bunyasak. Manufactured by Thomas De La Rue and Company Limited using a lithography printing process.