[HIPPOPOTAMES 1996]
o.adler
REPUBLIQUE GABONAISE

[Hippopotamus amphibius]
UGANDA

[HIPPOPOTAME POSTES1976]
BAILLAIS
REPUBLIQUE POPULAIRE DU BENIN

[PARC DES VIRUNGA]
1982 chaiot s a
ZAIRE

[hippopotamus amphibius]
Republic of Guinea

[Hippopotamus amphibius 1997]
Denis Murphy
NAMIBIA

[Four'7chaux Tokplit]
Republic of Togo

Republic of Togo

[hippopotamus amphibius]1995
United Republic of Tanzania

[Hippopotamus]
TANZANIA

[KALULU AND HIPPO]
Republic of Zambia

[PAPAYA HIPPOPOTAMUS]
GAMBIA

[hippopotamus amphibius]
Democratic Republic of the Congo

[HIPPOPOTAMES 1976]
Democratic Republic of the Congo

ROYAUM du BURUNDI

[Hippopotamus amphibius]
REPUBLICA DE GUINEA ECUATORIAL

[Stamp Month 1994 hippopotamus]
New Zealand

[zoopark erfurt]
Federal Republic of Germany

[HIPPOPOTAME]
REPUBLIQUE DU TCHAD

[Space Ark Fantasy]
1983 Walt Disney Productions
Republic of Sierra Leone

[DINGO]
Walt Disney Productions
Republic of Togolaise

[WORLD CUP ESPANA 82"]
Walt Disney Productions
Dependent Territory of Anguilla

[le Olimpiadi]
2000 Francesco Tullio ALTAN
Republic of San Marino