According to the collocation order, that is, "Jiazi Year, Ugly Year, Bingyin Year ……", 60 years is the alternation of "Jiazi Year", for example, 2002 is the year of Renwu, 2003 is the year of Guiwei, and 2004 is the year of Shenjia, and so on.
Extended data
Signatures are divided into "single segment" and "double segment".
If both the donor's name and the author's signature are "double", it is called "single", and if only the author's name is signed, it is called "single".
Inscriptions, inscriptions, paintings, calligraphy, gifts, etc. Name, year, month or poem of the giver and recipient.