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I'm not sure if there is a Germanic Mint, I'll have to do some digging.
I found a website that says "The term “Germanic” originated in classical times when groups of tribes living in Lower, Upper, and Greater Germania were referred to using this label by Roman scribes." I'll post the link here, it's a pretty cool read on the history of Germanic Tribes.
https://courses.lumenlearning.com/boundless-worldhistory/chapter/the-germanic-tribes/