1970 A grape, flower, bird and silver sachet was unearthed in hejia village, the southern suburb of Xi, Shaanxi Province. The whole body is hollowed out in silver, and the inner sphere can rotate freely, and is connected with the outer wall through a hook chain and a living shaft, so that the balloon can rotate at will without spilling spices. After thousands of years, it can still rotate flexibly, which makes modern people admire. Its diameter is less than five centimeters, its thickness is less than two millimeters, and its thinnest part is less than one millimeter. It is ingenious that such an object was actually made in the Tang Dynasty. It is now treasured in the showcase of cultural relics along the wall of Shaanxi History Museum.

The outer wall of the sachet is made of silver and is spherical and hollow. Divided evenly into two hemispheres with the horizontal line in the middle as the boundary, and the upper and lower spheres are sleeved with a snap button. There are two concentric rings connected by two shafts, the outer ring is connected with the ball wall, the inner ring is connected with the outer ring and the gold jar respectively, and a semicircular gold incense jar is placed in the inner ring. The outer wall, machine ring and gold bowl are riveted with rivets and can rotate freely. No matter how the ball on the outer wall rotates, the fragrant bowl can always keep balance due to the gravity of the machine ring and the golden bowl, and the spices inside will not spill out. This silver sachet has complicated production technology and scientific and ingenious design, which makes people sigh.

The world-famous gold and silver objects of Xi 'an hejia village have not been fully displayed since they were unearthed in 1970. It was not until May 2004 that they were dusted off for more than 30 years before they made their debut. On the occasion of the founding 10 anniversary of Peking University Secler Archaeological Art Museum, with the approval of National Cultural Heritage Administration, Shaanxi History Museum presented a gift to show hejia village's heritage to the public for the first time.

Ma Su stood in front of the museum window and watched the national treasure.

People in the Tang Dynasty were unrestrained and free, but it was the fragrance that conquered them. Both men and women like spices. This exquisite silver sachet is a gold and silver vessel in the prosperous Tang Dynasty. Grapes are entangled in branches, and flowers and birds depend on each other. What's even more amazing is that no matter how you shake it, the spices will not spill out, which is a true witness to the rich fragrance of the Tang Dynasty.