What is the price of Dong Hongqi's works?

Dong Hongqi's works were badly fired five years ago, with a height of 50,000.

First of all, is the work authentic? If it is genuine, it depends on whether it is a boutique. Words, etc.

If it is a general work, it is about 12 1000 square feet;

If it is his exquisite calligraphy, it is about 31,000 square feet.

For your reference.