In 640 AD (fourteenth year of Zhenguan), the Tubo king Songzan Gambu admired the civilization of the Tang Dynasty and sent Lu Dongzan, an envoy, to Chang 'an as a general. Walking Map is a scene where Lu Dongzan appeared in front of Emperor Taizong. The existing paintings are considered to be replicas of the Song Dynasty. It is deposited in the Palace Museum in Beijing. Silk, colored, 38.5cm long and 129.6cm wide. Known as "one of the top ten famous paintings handed down from generation to generation in China".

Commemoration of future generations

Buchitu stamp sheetlet was issued on 6 March 2002. Its face value is 8 yuan, and its circulation is12.9 million. This is the fifth set of new stamps issued by the State Post Bureau in 2002 and the first set of stamp sheetlets issued in 2002.

Before the stamp sheetlet was officially issued, the futures price had reached 35 yuan. However, with the deterioration of the postal business environment, the market's expectations for it gradually declined, which led to the official release of the stamp sheetlet, and its market price only opened in 25 yuan. After its appearance, it was further influenced by the deterioration of the postal market.

Judging from the handicap, the long and short sides have basically reached a temporary balance in this position. However, because the intensive transaction area of the Walking Map sheetlet is concentrated near 20 yuan, and the opening price of 25 yuan and the futures price of 35 yuan have formed considerable pressure, the price of the Walking Map sheetlet has a great resistance in the short term.