South Vietnam, Creation of a Democratic Constitution, November 1st, 1967, Michel Nr. SVN 394-396; Three stamps in nominals of 4D, 5D and 30D were issued in perforation 13.5.
Here is the mint set
and here the postally used set
These stamps were not officially released imperforate, however, a small number of imperforate trial proofs have come to market. Here is the imperforate set in mint blocks of four.
Enpreuves de Luxe; printed on thin gummed stamp paper and protected with a glassine sheet in the back. Government Printing Bureau Tokyo printed at bottom right.
Multiple franking of the 5D value paying an overall postage of 10D on a commercial reply card requesting information on the Webster Dictionary and sent from Nha Trang to the United States in November of 1967.
Mixed franking of the 3D Post Office stamp together with the 30D Democratic Constitution stamp paying an overall postage 33D on a registered international air mail letter sent from Saigon to Switzerland in June of 1970.
Mixed franking of the 6D Indigenous People stamp together with stamps from the Democratic Constitution, Air Mail, General Mobilization and 3. Anniversary of the Revolution sets paying an overall postage of 48D on an international air mail letter sent from Hoi An to West Germany in January of 1970.
Rare multiple franking of the 30D value paying an overall postage of 60D on a registered international official letter sent from Saigon to Switzerland in December of 1967. The Republic of Vietnam Marine Division apparently had a liaison office within the U.S. embassy as the letter has U.S. Government seals attached in front and on the reverse to seal the letter. There are also rectangular seal cachets that seal the envelope against improper censorship. The 30D stamp on postally used letter is very hard to find.
Registration Nr. 200750