Need help iding 1682 European coin - large pics

Hi, I am trying to id this European coin from 1682, it is about the size of a US dime. Any help would be really appreciated.
The pic is a collage of 2 shots of the front of the coin and 2 shots of the back of the coin at slightly different angles.
pic of coin
The pic is a collage of 2 shots of the front of the coin and 2 shots of the back of the coin at slightly different angles.
pic of coin
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Comments
I did find this one on CoinArchives with the same date and design. It's a "dreier", or 3 pfennig coin, issued during the reign of Duke Johann Ernst II; the letters "I.E. HZ.S" above the three shields stand for "Johann Ernst, Herzog (Duke) von Sachsen." Here's another in somewhat worse condition.
I believe there were 288 pfennige to a thaler at the time, making your coin a 1/96th of a thaler. I have a 1/24th thaler from the same state that had me scratching my head, until I was shown the usefulness of CoinArchives by members of this forum.
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Roman emperor Marcus Aurelius, "Meditations"
Apparently I have been awarded the DPOTD twice.