I have some stamps of A Dream of Red Mansions to sell. I don't know how appropriate the valuation is.
I can tell you their market situation for your reference. A Dream of Red Mansions is T69, and the full set of tickets is now 400-500 yuan. Sheetlet 1400- 1500 yuan. Your ticket for a Dream of Red Mansions is the most expensive 40 points in Qin Keqing, one for 180-200 yuan. 4 points Lin Daiyu 50-80 yuan. Others are in 10-20 yuan. In this way, these tickets can be worth more than 2500 yuan, about the amount. These tickets are always going up in price. If you don't need money urgently, take good care of it, and it will appreciate in the future.