20th anniversary of the formation of the Visegrád Group (Czech, Hungarian, Polish, Slovak joint stamp issue) /Polish
| Type | miniature sheet |
| Short description | The Czech, Hungarian, Polish and Slovak Posts are commemorating the 20th anniversary of the formation of the Visegrád Group by issuing a joint stamp. |
| Issue year | 2011 |
| Issue time | 2011. február 15. |
| Perforation Sizer | 45 x 26,67 mm |
| Theme | event,anniversary,culture |
| Designer | Barnabás Baticz |
| Stamped/Uncanceled | mint |
