2 Kina 25 Years of Independence

Issued to mark Papua New Guinea's 25th anniversary of independence from Australian administration in 1975, this note is among the earlier commemorative polymer issues from Note Printing Australia — a printer whose polymer technology, developed initially by the Reserve Bank of Australia, was by 2000 still far from universally adopted globally. The choice of substrate for a commemorative rather than a workhorse circulation note was deliberate: polymer holds detail longer and resists the equatorial humidity that destroys paper notes rapidly in PNG.

Pick 21 is a single-date commemorative with no known significant printing variants.