Northern Wei, Eastern Wei, Western Wei, and later Northern Qi and Northern Zhou, were for the Northern Dynasty. The Northern Wei Dynasty's Taihe Five Baht and Yong'an Five Baht basically reached the peak in the minting process of five baht coins. The casting of Changping five-baht is almost the same as that of northern Zhou, and its craftsmanship is not inferior to that of Northern Wednesday Dameiquan. This period of history of the Northern Dynasty and the Northern Zhou Dynasty laid the political, economic and cultural foundation for the establishment of the Sui Dynasty, and also laid the foundation for the establishment of the Sui and Tang Tongbao coin system.
Changping Five Baht Changping Five Baht was during the reign of Emperor Xuan of Northern Qi (553-559). The face seal book "Changping Five Baht", read directly, the text is smooth and beautiful, the layout is uniform, and the "Ping" character is crossed and crossed by Guo. "Changping Five Baht" due to the use of the copper mother fan stacking technology at that time, the casting is very sophisticated, the text is smooth and beautiful, the layout is uniform, the design and minting are extremely elaborate, and it is one of the most exquisite coins in the history of Chinese coins. The Changping five-baht did not break away from the "five-baht coin system", but it set a precedent for the emergence of the "Northern Wednesday Pin" coin, and presented the characteristics of the fifth-class coin system.
First, the large Changping five baht, back of the sun and moon Big Dipper seven stars. Diameter 32 mm, thickness 2.2 mm, weight 10.8 g.
Second, the large Changping five baht, back text seven stars double sword. Diameter 32 mm, thickness 2.2 mm, weight 10.4 g.
Third, Changping five baht small flat money. Diameter 24 mm, thickness 1.3 mm, weight 4.3 g.
Fourth, Changping five baht small back money. Diameter 22 mm, thickness 2 mm, weight 5 g.
The size of the changping five baht varies, which is obviously a series of hierarchical numismatic systems, but it does not depart from the baht as a monetary unit.
From the analysis of the coin form of Changping five-baht coins, the early Changping five-baht minting process is very rough. As can be seen from the small back money. The production of Xiaoping's five-baht money is very neat. The front and back inscriptions of large Changping five-baht coins are exquisite, which basically reflects the best level of ancient Chinese coin minting.
From the size of the five baht coin, we can understand that the changping five baht must be a numismatic system of five baht, ten baht, and twenty baht.