It's not worth much, 500 yuan. You can keep it for yourself if you like. First-class calligraphers in the former Qing Dynasty, according to the quality of their works, ranged from 1 10,000 yuan to10,000 yuan. The works of famous calligraphers and scholars in modern times range from thousands to tens of thousands. The calligraphy of celebrities who say "big" or "small" should not exceed 2000 at most.
Look at Zhao Puchu's words and you will know what the price is:
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