Stamps of Czech Republic, 31 base day
1 to 4 of 4
postage
2000, May 31 International Children's Day 2000 issue unwmk p. 11.5x11.25
| - | 5.40kc | multi |
2000, May 31 World Mathematical Year issue p. 11.75x11.25
| - | 7kc | multi | Fermat's Theorem |
2006, May 31 (no perf info)
| - | 7.50kc | multi | For Children |
2013, Jul 31 p. 11.5
| - | 13k | multi | St Wenceslas |
1 to 4 of 4