Tamper-proof Stamps
The UK’s Mirror reports, “Tamper-proof stamps are to be issued to thwart fraudsters who peel off or soak old ones to reuse them.”
According to an article by David Collins, “The new security Machin stamps have two sticky panels that tear if they’re peeled off, and are printed on special paper with the words Royal Mail repeated – similar to security features used on bank notes to stop forgeries.”
