Stamps of Serbia, 4 base month
1 to 50 of 128
postage
2003, Apr 3 Council of Europe issue (no wmk info) (no perf info)
| - | 16 | multi | — | — | ||
| - | 28,70 | multi | — | — |
2003, Apr 18 Easter 2011 issue (6 stamps)
| - | 12 | multi | — | — | ||
| - | 16 | multi | — | — | ||
| - | 22 | w. unwmk (2011) | ||||
| - | 26,20 | multi | — | — | ||
| - | 28,70 | multi | — | — | ||
| - | 112 | w. unwmk (2011) |
2003, Apr 22 Belgrade Choral Society 150th issue (no wmk info)
| - | 16 | multi | — | — |
2004, Apr 27 Kotor as heritage site 25th issue unwmk
| - | 16 | multi |
2004, Apr 29 Montenego history printing 250th issue
| - | 16 | multi |
2005, Apr 1 200th Anniversary of the Birth of Hans Christian Andersen issue
| - | 0,50€ | multi | ||||
| - | 58 | multi |
2006, Apr 3 protected species
| - | 0,50€ | multi | Vormela peregusna | — | — | |
| - | 0,50€ | multi | Ursus arctos | — | — | |
| - | 16,50 | multi | Canis lupus | — | — | |
| - | 16,50 | multi | Otis tarda | — | — |
2006, Apr 12 World Cup 2006 issue
| - | 0,40€ | multi | Germany 2006 | — | — | |
| - | 0,50€ | multi | Germany 2006 | — | — | |
| - | 0,50€ | multi | Germany 2006 | — | — | |
| - | 0,50€ | multi | Germany 2006 | — | — |
2007, Apr 6 WWF 2007 issue - Dryocopus martius - black woodpecker
| - | 20 | multi | — | — | ||
| - | 20 | multi | — | — | ||
| - | 40 | multi | — | — | ||
| - | 40 | multi | — | — |
2007, Apr 20 European Nature Protection - City Parks issue
| - | 40 | multi | — | — | ||
| - | 46 | multi | — | — |
2008, Apr 4 Serbian Olympic Tennis Team issue (5 stamps)
| - | 20 | multi | Janko Tipsarevic | — | — | |
| - | 30 | multi | Jelena Jankovic | — | — | |
| - | 30 | multi | Nenad Zimonjic | — | — | |
| - | 40 | multi | Ana Ivanovic | — | — | |
| - | 46 | multi | Novak Dokovic | — | — |
2008, Apr 7 protected animal species
| - | 20 | multi | Cervus elaphus | — | — | |
| - | 20 | multi | Eurasian badger - Meles meles Linnaeus, 1758 | — | — | |
| - | 46 | multi | Wild cat - Felis silvestris | — | — | |
| - | 46 | multi | wild boar - Sus scrofa Linnaeus, 1758 | — | — |
2008, Apr 11 Eurovision Song Contest 2008 issue
| - | 177 | multi | — | — |
2009, Apr 6 100th Anniversary of Birth of Milena Pavlovic Barilli issue
| - | 22 | multi | — | — |
2009, Apr 6 125th Anniversary of Birth of Jovan Bijelic issue
| - | 46 | multi | — | — |
2009, Apr 6 150th Anniversary of Birth of Paja Jovanovic issue
| - | 46 | multi | — | — |
2010, Apr 8 Motoring - 55 Years issue
| - | 22 | multi |
2010, Apr 12 city birds
| - | 22 | multi | Passer domesticus | |||
| - | 33 | multi | Phoenicurus ochruros | |||
| - | 46 | multi | Columba livia | |||
| - | 50 | multi | Parus major |
2010, Apr 19 140 Years of Industrialisation of Serbia issue
| - | 22 | multi |
2011, Apr 15 International Year of Biodiversity issue
| - | 50 |
2012, Apr 12 Joint Issue Serbia-Slovakia issue
| - | 50 | multi | Jan Koniarek |
2012, Apr 21 25th Belgrade Marathon issue
| - | 22 | multi |
2013, Apr 5 100 Years of the Edicts of Milan issue
| - | 50 | multi |
1 to 50 of 128