明朝这个买地券为啥一正一反的写?好奇怪

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iPewPewU

2021-03-18T06:31:54+00:00

[img]https://img.nga.178.com/attachments/mon_202103/20/-7Qbuzc-cs0mZcT3cSsg-lc.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202103/20/-7Qbuzc-cuhwZhT3cSsg-lc.jpg.medium.jpg[/img]

其他的比如诰命符就没这一正一反的写法