For the first time ever , the attractive world heritages in mainland china will be depicted on hong kong stamps . also available will be the first set of tete - beche and pentagonal stamps in hong kong , featuring major changes of public housing development in hong kong 此外，还有好些突破，例如， "世界遗产中国的名胜古迹"是首次以内地被喻为世界遗产的景点为题的邮票；以及"香港公共房屋的发展"是香港首套发行的五边形对倒邮票。
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This is the very first set of pentagonal stamps and tete - beche stamps in hong kong . the designer artfully meshed pictures of public estates with line drawings depicting aspects of our daily lives , and put them within the house - shaped pentagonal space constructed with dot , line and plane 五边形对倒的设计是香港邮票有史以来的第一次。设计师巧妙地利用点、线、面构成的空间图案，把不同年代的公屋实景与市民生活照的线条画组成邮票的主体图案，相信一定能够令大家耳目一新。
