I saw this article last night as it popped up on my least favorite search engine as a suggestion – The 70-year-old retiree who became America’s worst counterfeiter – The Hustle: https://thehustle.co/worst-counterfeiter-in-history-mr-880/; more about him – https://en.wikipedia.org/wiki/Emerich_Juettner. By worst counterfeiter, it means his counterfeit $1 bills were that bad. Surprising it took 10 years to find him. It’s an interesting story. If you get a chance to watch the movie, it’s not bad. There are some differences between the movie and reality.