- Oct 26, 2004
- 24,679
- 24,533
- 🏆 Honorable Mentions:
- 2
- Detector(s) used
- Minelab Explorer
- Primary Interest:
- Shipwrecks
How Benjamin Franklin Helped Foil Early American Money Counterfeiters
Scientists identified specific pigments, minerals and fibers used in the bills.
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