But complex though these designs may be , to our knowledge , a method to counter Dali 's magic checkbook has yet to be devised . Latest Norwegian designs will incorporate complex artwork and designs . These chosen in part for their ability to cater for complex security features . Security features built into elaborate designs make them harder to counterfeit .
Latest Norwegian designs will incorporate complex artwork and designs . These chosen in part for their ability to cater for complex security features . Security features built into elaborate designs make them harder to counterfeit .