193 1 was blasted with gunpowder by Sun Dianying, a thief from Dongling, and a large number of jewels were stolen from the tomb of Qianlong, including the dragon seal. "Bagua Zhangbao" is the eightieth birthday of Qianlong, which happened to be the fifty-fifth year of his reign, so he ordered the jade carving in Xinjiang and Ching Tien to build a jade seal, in which the dragon carving on the jade seal was extremely fine, but the printed surface was only 12.8 square meters of "Bagua Zhangbao".

This imperial seal was found in Panjiayuan black market for the first time after it was stolen in Sun Dianying, and sold at a low price of 2,000 yuan. However, it was later discovered by people who knew the goods, and it was finally sold at a high price of 40 million yuan in the formal cultural relics market.