I collect worldwide stamps used or mint:
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1- overprinted stamps --> https://overprintedstamps.wordpress.com
2- old classic stamps - colonies
3- joint - twin issues
4- special shape (triangle, round, heart, rhomboid...etc..... )
5- EUROPA issue after 1990
6- UN, UNICEF, UNESCO, FAO, WHO, ITU, UPU, WMO, ASEAN, APEC, Rotary, Lions, Red Cross
7- pre-paid postal card
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Please, do not send stamps from Germany, Spain, Netherlands, UK, USSR
