Studies reveal Benjamin Franklin's innovative anti-counterfeiting techniques in early American paper currency

Researchers have uncovered previously unknown money-printing innovations developed by Benjamin Franklin to combat counterfeiting.
Franklin used features like colored threads, watermarks, and imprints of natural objects to make his paper bills harder to duplicate.
Analysis shows Franklin used graphite ink and incorporated microfibers and translucent materials for additional security.
Franklin's efforts laid important groundwork for secure paper currency in the US by foiling early counterfeiters.
Further research on Franklin's publications is needed to fully understand his pioneering printing techniques.