Recognition: "Yongzheng Years of the Qing Dynasty". The round mouth is folded along, the short neck is full of shoulders, the foot is converged under the belly, the upper part is round and full, the lower part is slender and beautiful, and the beauty of the curve is fully displayed. The mouth of the bottle is painted with gold lines for a week, and the body of the bottle is painted with ink and sea clouds and cranes. Legend has it that the crane has turned into blue for thousands of years, and then turned into black for thousands of years. It is called a black crane, which means longevity.