SK55: Gabon - 1978: 100k
![](http://i1225.photobucket.com/albums/ee386/zozo2612/LuckyChau01/04-11-201311-12-09AM.jpg)
SK56: Bloc in trên chất liệu gỗ - Djibouti - 1985: 470k
![](http://i1225.photobucket.com/albums/ee386/zozo2612/LuckyChau01/04-11-201311-12-46AM.jpg)
SK57: Djibouti - 1984: 180k
![](http://i1225.photobucket.com/albums/ee386/zozo2612/LuckyChau01/04-11-201311-13-06AM.jpg)
SK58: Bloc in trên chất liệu gỗ - Djibouti - 1983: 480k
![](http://i1225.photobucket.com/albums/ee386/zozo2612/LuckyChau01/04-11-201311-13-28AM.jpg)
SK59: Papua New Guinea - 1981: 30k
![](http://i1225.photobucket.com/albums/ee386/zozo2612/LuckyChau01/04-11-201311-41-29AM.jpg)
SK60: Papua New Guinea - 1981: 45k
![](http://i1225.photobucket.com/albums/ee386/zozo2612/LuckyChau01/04-11-201311-48-38AM.jpg)
SK61: Đức quốc xã - 1940: 100k