201725th Anniv. of Collective Security Treaty - First Day Cover
| Set |
| GBP £1.66 |
| Sheetlets |
| GBP £16.59 |
| First Day Cover |
| GBP £2.20 |
- 30.11.2017
- Vahagn Mkrtchyan, Vahe Muradyan
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Armenia - Recommended stamp issues
WOPA+ recommended stamp issues
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