The 2025 The King's Birthday Three Coin PNC is a prestigious collaboration between Australia Post and the Royal Australian Mint, marking King Charles III's official birthday with a limited edition of 6,000 PNCs. This postal-numismatic cover unites three uncirculated coins—5c (25.5mm, 2.83g), 10c (23.6mm, 5.65g), and 20c (28.65mm, 11.3g)—struck in cupro-nickel, each showcasing bespoke designs by Aaron Baggio. The 5c captures a youthful Charles with his beloved corgis, the 10c portrays him in his Royal Navy attire, and the 20c highlights his environmental advocacy with a native tree, reflecting his 2025 priorities. The obverse of each coin bears his effigy by Daniel Thorne, affirming their $0.35 total legal tender value.

Encased in a luxurious envelope adorned with gold foil and the royal crest, the PNC includes a $3.60 stamp sheet with three $1.20 stamps featuring artistic royal portraits, cancelled with a special postmark from Canberra on Australia Day 2025. Accompanied by a booklet detailing Charles' life—from his 1948 birth to his 2022 accession—this set launched on 26 January 2025 and is available until 31 January 2026. Perfect for collectors of royal memorabilia or hybrid philatelic-numismatic items, it’s a fitting tribute to the King's enduring legacy as of 6:00 PM AEDT, October 27, 2025.