German button maker searched rivers of American Midwest for valuable shells

  • Posted 5 days ago by bookofjoe
  • 83 points
https://www.smithsonianmag.com/smithsonian-institution/how-one-german-button-maker-searched-the-rivers-of-the-american-midwest-for-the-shells-that-could-make-him-a-fortune-180989012/

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