I took a look at the
KMA coins page. From the pictures I see three things:
(1) Western Han coins don't normally have the rims your coins have.
(2) Wang Mang through Jin DO have rims, but nowhere nearly as thick as your coin's rims.
(3) Going by the KMA page, 4-2 coins (four characters on one side, two on the other) didn't appear in Han, Wang Mang, Shu, Wei, Wu, or Jin; they were 4-0 or 2-0. So either they were pre-Han (unlikely) or post-Jin.
That said, they seem to be standard chinese characters, yet that font wasn't really finalized until the days of Zhong Yao (yes, the same Zhong Yao who was one of Wei's first excellencies), so again, pre-Wei is unlikely.
By the way, that two-character side should be left and right, not top and bottom.
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Aha! Thanks to the magic of Google, I found what the coin is and, uhh, it's definitely post-Jin. Specifically, it's a Qianlong Tong Bao coin (Qing dynasty, Qianlong Emperor, 1736-1795).
https://upload.wikimedia.org/wikipedia/ ... y1778a.jpghttps://upload.wikimedia.org/wikipedia/ ... y1778a.jpgSo yes, it's definitely an old coin... just not nearly as old as we hoped. Sorry. :/
And it doesn't seem to be a 100% perfect match, but is awfully close.
Unless I specifically say otherwise, assume I am talking about historical Three Kingdoms, and not the novel.
In memory of my beloved cats, Anastasia (9/30/06-9/18/17, illness) and Josephine (1/19/06-9/23/17, cancer).
