Stamps of Serbia, 21 base day
1 to 45 of 45
postage
1904, Sep 21 dynasty 100th issue (no wmk info) (no perf info) (8 stamps)
| X | 5p | yelgrn | Karageorge & King Peter I | — | — | |
| X | 10p | rosered | Karageorge & King Peter I | — | — | |
| - | 15p | redvio | Karageorge & King Peter I | — | — | |
| - | 25p | bl | Karageorge & King Peter I | — | — | |
| - | 50p | graybrn | Karageorge & King Peter I | — | — | |
| - | 1d | bis | insurgents 1804 | — | — | |
| - | 3d | blgrn | insurgents 1804 | — | — | |
| - | 5d | vio | insurgents 1804 | — | — |
2004, Jan 21 Politika newspaper 100th issue unwmk
| - | 16 | multi | .30–1.00 | .30–1.00 | ||
| - | 16 | multi | .30–1.00 | .30–1.00 |
2004, May 21 FIFA 100th issue
| - | 28,70 | multi | FIFA emblem & soccer field |
2004, Jun 21 JUFIZ XII issue - Terazije Fountain
| - | 32 | multi | — | — | ||
| - | 32 | multi | — | — |
2005, Sep 21 Joy of Europe 2005 issue
| - | 0,50€ | multi | — | — | ||
| - | 0,50€ | multi | — | — |
2007, May 21 75 Years of Amelia Earhart's Flight across the Atlantic issue
| - | 50 | multi | — | — |
2008, Mar 21 Easter 2008 issue
| - | 20 | multi | — | — | ||
| - | 46 | multi | — | — |
2009, Sep 21 50th Anniversary of the International Exhibition issue
| - | 22 | multi | — | — |
2012, Apr 21 25th Belgrade Marathon issue
| - | 22 | multi |
2012, May 21 reptiles 2012 issue - reptiles (2012)
| - | 22 | multi | Coronella austriaca | |||
| - | 33 | multi | Podarcis taurica | |||
| - | 44 | multi | Lacerta viridis | |||
| - | 66 | multi | Emys orbicularis |
2014, Jan 21 Opening of the Negotiations for Accession of Serbia to the European Union issue
| - | 22 | multi |
2015, Oct 21
| - | 11 | multi | Belt and buckle |
2016, Jun 21 125 Years since Tesla's Transformer Patent issue
| - | 70 | multi |
2016, Oct 21 Remembering the Victims of the Second World War - Kragujevac 1941 issue
| - | 23 | multi |
2017, Feb 21 100th Anniversary of Toplica Uprising issue
| - | 23 | multi |
2017, Apr 21 Belgrade Marathon 2017 issue
| - | 23 | multi |
2017, Aug 21 90th Anniversary of the Serbian National Airline issue
| - | 23 | multi |
2019, Feb 21 Easter 2019 issue
| - | 23 | multi | ||||
| - | 74 | multi |
2019, Aug 21
| - | 27 | multi |
2019, Oct 21 75th Anniversary of "Filmske Novosti" Newsreel issue
| - | 27 | multi |
2020, Jan 21 World War I - Italian Navy for the Serbian Army in the Great War issue (no wmk info)
| - | 27 | multi | — | — | ||
| - | 40 | multi | — | — | ||
| - | 54din | multi | — | — | ||
| - | 70din | multi | — | — |
2022, Apr 21 Serbian Army Day issue
| - | 30 | multi | — | — |
2022, Nov 21 World Cup 2022 issue
| - | 100 | multi | — | — |
2023, Feb 21
| - | 30 | multi | St. Sava Temple, Belgrade | — | — |
2023, Jun 21 European Nature Protection 2023 issue
| - | 48din | multi | — | — | ||
| - | 120 | multi | — | — |
2024, Jun 21 200th Anniversary of the Birth of Branko Radicevic issue
| - | 48din | multi | — | — |
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