Undivided sheet of Continental Currency, printed on blue paper for use as a counterfeit detector (Philadelphia: Printed by Hall and Sellers, 1776).
Franklin’s leaf cuts were used on money right up through the Revolution.
“Joseph Breintnall: Leaves Turned to Green” ~ Articulate
How Ben Franklin And An Amateur Botanist Used Art To Fight Off Forgery
The Library Company’s Mike Barsanti tells the story of Joseph Breintnall and his role in inspiring Benjamin Franklin to use leaf prints as an anti-counterfeiting measure for Pennsylvania’s paper currency. Read all about it HERE