What was the book style of Jin in the early Spring and Autumn Period?

There are not many works in Jin State and its headquarters before and during the Spring and Autumn Period. From the manuscripts of Ding, Rui Zi Ding and Su Ding Ming handed down from generation to generation, we can see the inheritance of calligraphy style in the early years of the Western Zhou Dynasty.

? Yan Calligraphy Yan, like Qin, has been in a corner for a long time, living in the north, with little traffic with the countries in the Central Plains. There are few inscriptions on the sacrificial vessels of the State of Yan, and the word "Yan" in the inscriptions is generally written as "Pin", such as "Gong Pin Zha" and "Pin Hou Slaughters Ghosts".