Illegal stamps

These are stamps which were in our list and which we later discovered were illegal.

Illegal stamps are ones which were issued without the permission of the postal authorities. They could not be used to send letters.

Click on a thumbnail to see the full image.


nightingale5 Niger 1998	newton31 Chad 1999	durer9 Chad 1999	russell3 Angola 2001
leonardo33 Mali 2005	romer2 Mali 2006	hubble3 Djibouti 2006	hawking2 Djibouti 2006
hooke3 Djibouti 2006	huygens4 Djibouti 2006	leonardo18 Djibouti 2006	newton54 Djibouti 2006
newton53 Mali 2006	gemma_frisius1 Mali 2006	halley40 Mali 2006	huygens5 Mali 2006
cassini2 Mali 2006	flamsteed1 Mali 2006	aristotle16 Malawi 2008	babbage3 Malawi 2008
bacon1 Malawi 2008	newton56 Malawi 2008	zhang_heng2 Malawi 2008	arch6 Malawi 2008
al-haytham4 Malawi 2008	newton58 Mali 2009	newton59 Rwanda 2009	leonardo3 Rwanda 2009
huygens6 Rwanda 2009	arago4 Djibouti 2010	adams Djibouti 2010	brahe11 Djibouti 2010
maxwell2 Mali 2010	kepler51 Mali 2010	newton87 Malawi 2011	kepler55 Malawi 2011
newton70 Mali 2011	huygens12 Mali 2011	arch10 Mali 2011	hertz_heinrich11 Mali 2011
ohm3 Mali 2011	kepler52 Mali 2011	zhang_heng3 Mali 2011	zu_chongzhi3 Mali 2011
newton82 Mali 2012	newton82a Mali 2012	kepler57 Chad 2015	group1 Chad 2015
group2 Chad 2015	shen_kuo1 Chad 2015