De La Rue produced polymer demonstration notes specifically to pitch their substrate and security technology to central bank clients — these are sales tools, not monetary instruments, and were never intended for public circulation. The transparent window and embedded thread exist here as proof-of-concept rather than operational security, and the QR code almost certainly links to De La Rue's own marketing infrastructure rather than any verification system.
Collector interest is niche but genuine. Printers' specimen and promotional material often surfaces through trade channels after contract negotiations conclude or product lines are discontinued.
De La Rue produced polymer demonstration notes specifically to pitch their substrate and security technology to central bank clients — these are sales tools, not monetary instruments, and were never intended for public circulation. The transparent window and embedded thread exist here as proof-of-concept rather than operational security, and the QR code almost certainly links to De La Rue's own marketing infrastructure rather than any verification system.
Collector interest is niche but genuine. Printers' specimen and promotional material often surfaces through trade channels after contract negotiations conclude or product lines are discontinued.