counterfeit money

Khachatur Manukyan and his team employed cutting-edge spectroscopic and imaging instruments to get a closer look than ever at the inks, paper and fibers that made Benjamin Franklin’s bills distinctive and hard to replicate.
Researchers Decipher the Secrets of Benjamin Franklin’s Paper Money
A group of University of Notre Dame researchers suggest
The Boston Book & Paper Exposition & Sale
Turn off your cell phone, forget texting and put down your I-pad.