Prehistoric animals, 1994, 8 stamps
Prehistoric animals, 2001, 6 stamps
Prehistoric animals, 1999, 9 stamps
Prehistoric animals, 1994, 8 stamps
Prehistoric animals, 1994, 72 stamps
Prehistoric animals, 1994, 2 stamps
Prehistoric animals, 1994, 9 stamps
Prehistoric animals, 28 stamps
Prehistoric animals, 1998, 6 stamps