Audubon (158)Kingfisher (11)Sea (24)
Birds of prey (154)Owls (146)Water Birds (127)
Ducks (45)Parrots (131)
Hummingbird (42)Penguins (86)

Austria - 1988
1918

Price: 2,00 EUR
1918

Ajman - 1972
1921/3

Price: 4,00 EUR
1921/3

China (Taiwan) - 1990
1922/5 (4Bl.)

Price: 12,00 EUR
1922/5 (4Bl.)

Vietnam - 1988
1922/8+Bl.61

Price: 8,00 EUR
1922/8+Bl.61

Paraguay - 1969
1929/35 (NoAir)

Price: 8,00 EUR
1929/35 (NoAir)

Congo (Kinshasa) - 2007
1929/32(KB)+Bl.303/6

Price: 100,00 EUR
1929/32(KB)+Bl.303/6

Congo (Kinshasa) - 2007
1929/32(KB)A/B+Bl.303/6A/B

Price: 320,00 EUR
1929/32(KB)A/B+Bl.303/6A/B

Colombia - 1994
1932/5

Price: 8,00 EUR
1932/5

Colombia - 1994
1932/5 (4Bl.)

Price: 30,00 EUR
1932/5 (4Bl.)