The Mathematical Art of Guilloche Patterns: Security Meets Aesthetic Elegance
Look closely at a banknote, a stock certificate, or an official government passport, and you will see hypnotic, interwoven geometric wave patterns framing the borders and background. These complex geometric loops are known as Guilloche patterns (or rosette patterns). While they are breathtakingly beautiful, Guilloche patterns were originally invented for a purely practical purpose: anti-counterfeiting […]