6. What does the word "signature" mean after Jingdezhen pastel poems in 70 years?

6. 1970 The word "I" after Jingdezhen pastel poems refers to special funds. According to relevant public information, I-shaped money is the special money for blue and white exquisite porcelain produced by Guangming Porcelain Factory, one of the top ten porcelain factories in Jingdezhen, so the I-shaped money inscribed after 1960 and 1970 in Jingdezhen pastel poems refers to the special money.