Several ways to write "calendar" from coins

Today, I accidentally sorted out the money of the Ming Dynasty and found that there are many ways to write ancient Chinese characters, which is very interesting to study. Now throw a brick to attract jade, take the word "calendar" as an example for reference:)

Li Yong Bao Tong was cast by Zhu Youlang (Yongming Wang) of Nanming Wang Gui on 1647 when he proclaimed himself emperor in Zhaoqing, Guangdong. Divided into Xiaoping, Zheer, Dang Wu and Dang Shi. There are four kinds of calendar characters in the lower half, namely Shuang Mu Day, Shuang Mu Day, Shuanghe Day and Shuanghe Day. Looking up Ci Hai, we found that there are other ways to write the calendar characters, such as from Shuanghe to stop, from Shuang Mu to stop, and from Shuanghe to one heart. I wonder if it is used in other coins? Five cents: one cent:

Note: Zhu Youlang was born in Beijing in the third year of the Apocalypse, and his father Zhu was the seventh son.