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在摄影术发明的百余年中,不同风格的摄影作品充斥着整个文化体系,在这4张摄影邮票中,我们可以看到从摄影术发明早期到现代数码摄影的演变。异形邮票,一遍指所有非矩形的邮票。世界各国发行过许多的异形邮票、圆形、椭圆形等。我国发行的异形邮票并不多,到目前为止,只有四套。
In the hundred years since the invention of photography, different styles of photographic works are filled with the entire cultural system. From the four photographic stamps, we can see the evolution from the early days of photographic invention to the modern digital photography. Abnormal stamps, again referring to all non-rectangular stamps. Many countries in the world have issued many special-shaped stamps, round, oval and so on. There are not many special-shaped stamps issued in our country, so far only four sets have been issued.