Coral

PWPW issues these promotional specimen notes — internally called "test notes" — to showcase their current security printing capabilities to potential central bank clients. The "Coral" series is part of that commercial demonstration program, not a circulating instrument of any issuing authority. The polymer substrate and integrated window are the selling points; the note exists to sell the printer, not to move through an economy.

PWPW has operated as a security printer since 1919 and has issued numerous such promotional pieces over the decades, each tied to a specific technology the firm was actively marketing at the time of issue.