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今年4月12日,是国际保卫儿童会议50周年纪念日。笔者收藏一枚“国际保卫儿童会议”纪念卡。此卡贴改8“中华邮政单位邮票(上海大东版)”加字改值5元/快递挂号黑字邮票一枚,盖
April 12 this year marks the 50th anniversary of the International Conference on the Protection of Children. I collect a “International Conference on the Protection of Children” commemorative card. This card paste change 8 “China Post unit stamp (Shanghai Dadongban)” plus the word change value 5 yuan / Express registered black stamps, cover