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Guinea-Bissau 2012 Mi.5927-0+Bl.1048 €25 Minerals, Galena, Inesite -
Guinea-Bissau 2013 Mi.6882-5+Bl.12095 €24 Minerals and volcanoes, volcanoes -
Guinea-Bissau 2013 Mi.6788-1+Bl.1191 €24 Minerals, Emerald, Ammonite -
Comoros 2011 Mi.2939-3+Bl.613 24€ Minerals, barite, azurite, wulfenite -
Comoros 2011 22€ Minerals and ores of Africa, rocks and gemstones -
Guinea 2013 €34 Nelson Mandela and African minerals -
Comoros 2011 €23 Minerals and ores of Africa, rocks and gemstones -
Comoros 2011 20€ Minerals and ores of Africa, rocks and gemstones -
Guinea Bissau 2004 Mi.2804-7 €12 Minerals, rocks and meteorites -
Guinea Bissau 2004 Mi.2804-7 €12 Minerals, rocks and meteorites, IMP. -
Comoros 2010 24€ Minerals and ores of the islands
