5 oz 2025 Extragalactic Patinaed Coloured Silver Coin | Perth Mint

Discover the cosmic world of the Whirlpool Galaxy with this extragalactic coin crafted from 5 oz of 99.99% pure silver, featuring a striking patina treatment and stunning pink, golden and white diamonds.

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COIN HIGHLIGHTS

• 99.99% pure silver
• Patina and coloured surface treatment
• Hand-set with approx. 0.33ct of pink, golden and white diamonds
• Australian legal tender

WHIRPOOL GALAXY

Extragalactic astronomy is the study of objects and phenomena beyond the Milky Way. Among the most observed deep-space objects is the Whirlpool Galaxy (aka Messier 51). Located 31 million light-years away in the constellation Canes Venatici, it offers a face-on view enabling astronomers to study its magnificent spiral structure comprising huge numbers of stars. Within its centre and along its swirling arms, dense clouds of gas and dust are being compressed to create clusters of new stars. Not only is the Whirlpool Galaxy a captivating sight, but it also offers researchers an unprecedented opportunity to investigate star-forming processes.

EXTRAGALACTIC DESIGN

This uniquely patinaed coin portrays a coloured representation of the Whirlpool Galaxy, encircled by the inscriptions ‘EXTRAGALACTIC’, ‘23.58 KPC | 31 MLY’ (its diameter in kiloparsecs and distance from Earth in megalight-years), and its location on the celestial sphere at coordinates ‘RA 13h 29m 53s | Dec +47° 11′ 43’. Representing stars within the Galaxy’s arms, the reverse is hand set with a pink, golden, and two white diamonds. Also included are the designer’s initials ‘NM’, The Perth Mint’s ‘P’ mintmark, and 2025 year-date.

TECHNICAL INFORMATION

This coin have been individually treated to give it a pleasing patina, a surface look normally associated with objects that have grown more beautiful over time. As a result of this treatment, the appearance of each coin in the mintage may vary.

PRESENTATION PACKAGING

Accompanied by a numbered certificate of authenticity, the coin comes packaged in a circular wooden collector case, elegantly embossed with the word 'EXTRAGALACTIC' on the lid. Inside, the coin is nestled in velvet-lined material with cosmic-inspired foiling for an added touch of sophistication.

ABOUT THE PERTH MINT

The Perth Mint opened in 1899 as the British Royal Mint's 3rd branch in Australia. The historical Hay Street location handled gold refining until moving to a modern facility in April 1990. Ownership of the mint was transferred to the Government of Western Australia in July of 1970. Under an agreement with the Commonwealth Treasury, they were empowered to mint and market gold, silver, and platinum as Australian legal tender to investors and collectors worldwide. Today, they are amongst the elite world mints whose pure gold, silver, and platinum items are trusted without question. Items such as the Australian Nugget, Silver Coin Series (Kangaroo, Kookaburra, Koala, and Platypus to name a few), as well as the Australian Lunar Gold and Silver Coin Series are extensively sought after by bullion investors worldwide.