A tougher Papua New Guinea 50-kina that keeps the 2017 look, adds a flying Bird-of-Paradise and the world’s largest butterfly, and lands for Independence ’25.
The Bank of Papua New Guinea (BPNG) has issued a polymer 50-kina commemorative note for the nation’s 50th Anniversary of Independence and of its national currency. It retains the familiar 2017 K50 design (Sir Michael Somare and Parliament House) and adds a Raggiana Bird-of-Paradise in flight plus the Queen Alexandra’s Birdwing—with the official 50th-anniversary logo (1975–2025) integrating the Southern Cross and a bird-of-paradise silhouette. BPNG unveiled the designs on 28 April 2025, with circulation tied to Independence celebrations in late August/September. See BPNG’s media page and speech, Note Printing Australia’s note on production, and local coverage in The National. Links in this article.
Background: same note, bigger moment
PNG’s K50 is the everyday “big bill.” For the jubilee, BPNG chose evolution over revolution: keep the trusted layout, add national flora and fauna, and layer in a clear anniversary signal people will recognise at a glance. Think of it as a field-tested design with a celebratory spoiler—practical, durable, unmistakably PNG.

Design & features: the Papua New Guinea K50 grows wings
The 2025 polymer keeps the 2017 K50 backbone—Grand Chief Sir Michael Somare on the obverse and Parliament House, Port Moresby on the reverse—then dials up identity: Raggiana Bird-of-Paradise (Paradisaea raggiana) in flight, the Queen Alexandra’s Birdwing (Ornithoptera alexandrae) and a Blue Orchid motif. The anniversary emblem sits above the butterfly: the gold “50” with Southern Cross stars in the “5” and a bird-of-paradise silhouette in the “0,” echoing the national flag’s language.
Window & accessibility
The transparent window has been refreshed: the bird-of-paradise is now depicted in flight (not perched), a fast visual tell for the commemorative. Intaglio elements maintain the tactile feel; polymer keeps the note cleaner and sturdier in humid conditions.
Papua New Guinea Tech Specs (at a glance)
- Denomination
- 50 kina (polymer; commemorative)
- Theme
- 50th Anniversary of Independence & national currency (1975–2025)
- Design base
- 2017 K50 (Somare; Parliament House) retained
- Key additions
- Raggiana Bird-of-Paradise (in flight); Queen Alexandra’s Birdwing; Blue Orchid; 50th-anniversary logo
- Substrate
- Polymer (BOPP)
- Window update
- Bird-of-paradise now flying
- Signatures
- Elizabeth Genia (Governor, BPNG) · Andrew F. Oaeke (Secretary, Treasury)
- Serial format
- First two digits encode year (e.g., 25 = 2025)
- Dimensions
- Approx. 145 × 70 mm (matches the 2017 series)
- Printer
- Note Printing Australia (announced by BPNG)
- Launch & circulation
- Designs unveiled 28 Apr 2025; circulation aligned with Independence season (late Aug / 16 Sep)
Good to know: the commemorative K50 co-circulates with existing K50 issues. ATMs and cash handlers treat it like any other fifty—only shinier.

Papua New Guinea Quick Answers
What exactly is being commemorated?
What changed from the 2017 K50?
Who signs the new notes?
How do I confirm it’s a 2025 issue?
When did it roll out?
Highlights Facts • Collector Tips • Did You Know?
Facts & Curiosities
- Polymer 50-kina commemorative for PNG’s golden jubilee (1975–2025).
- Adds Raggiana Bird-of-Paradise, Queen Alexandra’s Birdwing and anniversary logo.
- Unveiled 28 Apr 2025; issued for Independence celebrations.
Collector Tips
- Check the window: bird now in flight.
- Confirm serial “25” at the start for 2025-dated runs.
- Pair it with a standard 2017 K50 to showcase the design evolution.
Did You Know?
- The Queen Alexandra’s Birdwing is the world’s largest butterfly, endemic to eastern PNG.
- PNG’s flag pairs the Southern Cross with a bird-of-paradise silhouette—mirrored in the anniversary logo.
- Polymer (BOPP) notes last longer and stay cleaner than paper—ideal for tropical climates.


