Stamps of Vietnam - South Vietnam, 18th of any month of any year
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postage
1967, Sep 18 unwmk (no perf info)
| X | 3pi | multi | wedding procession | .20 |
1972, Apr 18 Air Viet Nam 20th issue (8 stamps)
| - | 10pi | multi | plane over Dalat | — | — | |
| - | 10pi | multi | — | — | ||
| - | 10pi | multi | — | — | ||
| - | 10pi | multi | — | — | ||
| - | 25pi | multi | plane over Dalat | — | — | |
| - | 25pi | multi | — | — | ||
| - | 25pi | multi | — | — | ||
| X | 25pi | multi | plane over Saigon | — | — |
1973, Feb 18 200000th returnee issue
| - | 10pi | multi | — | — |
1974, Aug 18 orchids (1974 South Vietnam)
| - | 10pi | multi | Rhynchostylis gigantea | .20 | ||
| - | 20pi | multi | Cypripedium callosum | — | — | |
| - | 200pi | multi | Dendrobium nobile | — | — |
1974, Nov 18 ovpted
| X | 25pi on 1pi | multi | emblem&waves | — | — |
1974, Nov 18 ovpted
| X | 25pi on 1pi | multi | — | — |
1974, Nov 18 ovpteddancers & musicians (1971)
| - | 25pi on 7pi | multi | — | — |
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