Which version of the perpetual calendar should I buy?

Good ink plate. According to Bagui Examination Network, the ink calendar is the most complete and best. It conveys the profound information of the Gregorian calendar through modern cutting-edge, convenient and efficient scientific and technological means, endows traditional culture with great charm, and helps people to easily obtain information related to a certain day, which can be used as a basis for agricultural farming and a reference for life arrangements of big and small things.