20 15 are the works of master sanyang harmonious nebula valuable for collection?

Yes Master Sanyang Xingyun wrote a calligraphy "The Sum of Sanyang" on 20 15. The font art is elegant and steady, with the market price of 2023, which is worth collecting. Harmonic nebula (1August 927 19 to February 5, 2023), male, from Yangzhou (Jiangdu), Jiangsu Province, commonly known as Li Guoshen, whose real name is Wu Che, is often called the nebula mage.