NN544: Malta - 2000: 75k
NN545: Malta - 1991: 180k
NN546: Booklet - Romania - 1994: 95k
NN547: San Marino - 1967 (khối 10): 300k
NN548: Mali - 1981: 90k
NN549: Mali - 1981 (in đè): 90k
NN550: Nevis - 1995: 85k
NN551: Niger - 2014: 315k
NN552: Niger - 2014: 340k
