On the upper right corner shows a sketch of the artist's portrait, and this signing method was also favored by many painters of the time.
值得一提的是右上角所贴的速写是作者签名的一种方式，许多画家对于此种签名方式颇为钟爱。
On the upper right corner shows a sketch of the artist's portrait, and this signing method was also favored by many painters of the time.
值得一提的是右上角所贴的速写是作者签名的一种方式，许多画家对于此种签名方式颇为钟爱。
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