Royalties - 1981
192/5

Price: 2,00 EUR
192/5

Music - 1975
192/3

Price: 160,00 EUR
192/3

Railways - 1969
192/3 A/B

Price: 30,00 EUR
192/3 A/B

Astronomy & Astrlogy - 1991
192/206 KB

Price: 20,00 EUR
192/206 KB

Wall paintings - 1967
192/3

Price: 10,00 EUR
192/3

Botswana - 1977
193/7

Price: 3,00 EUR
193/7

Gabon - 1964
193/5

Price: 12,00 EUR
193/5

Niger - 1968
193/9

Price: 19,00 EUR
193/9

Tanzania - 1982
193/6

Price: 10,00 EUR
193/6