Prehistoric animals, 1990, 8 stamps
Prehistoric animals, 2014, 6 stamps
Prehistoric animals, 1977, 1 stamp
Prehistoric animals, 1967, 5 stamps
Prehistoric animals, 1994, 17 stamps
Prehistoric animals, 1994, 6 stamps (imperf.)
Prehistoric animals, 1990, 1 stamp
Prehistoric animals, 1967, 8 stamps
Prehistoric animals, 1990, 8 stamps
Prehistoric animals, 2014, 2 stamps
Prehistoric animals, 1990, 7 stamps
Prehistoric animals, 1994, 6 stamps (imperf.)
Prehistoric animals, 1 stamp