Prehistoric animals, 1990, 5 stamps
Prehistoric animals, 1990, 20 stamps
Prehistoric animals, 1990, 4 stamps
Prehistoric animals, 1990, 3 stamps
Prehistoric animals, 1990, 1 stamp
Prehistoric animals, 1990, 1 stamp
Prehistoric animals, 1990, 1 stamp
Prehistoric animals, 1990, 1 stamp
Prehistoric animals, 1990, 140 stamps
Prehistoric animals, 1990, 28 stamps
Prehistoric animals, 1990, 4 stamps
Prehistoric animals, 1990, 2 stamps