2009 20c "International Year of Astronomy" — Ex-Mint Set Specimen

2009 20c "International Year of Astronomy" Ex-Mint Set Specimen

Single Uncirculated (Ex-Mint Set) coin, sourced directly from an official 2009 Royal Australian Mint (RAM) Uncirculated Year Set. Supplied in a brand-new 2x2 Mylar coin flip for protection.

Coin Specifications

• 2009 20c Commemorative Coin celebrating the United Nations International Year of Astronomy (IYA) and marking 400 years since Galileo Galilei first used an astronomical telescope.
• Key Rarity: Non-Circulating Legal Tender (NCLT) release exclusive to collector sets — this unique design was never issued into general circulation.
• Condition Standard: Struck to Uncirculated standard by the Royal Australian Mint, capturing sharp design details and strong original surface brilliance.
• Reverse Design: Features stargazers observing a detailed celestial star chart against the night sky, symbolising humanity's enduring exploration of the cosmos.
• Obverse Design: Features the 4th portrait of Queen Elizabeth II by Ian Rank-Broadley.
• Comprehensive Mintage Breakdown: Total overall mintage of just 56,952 across all set releases (50,957 in standard BU Year Sets, plus 5,995 total across special ANDA Brisbane, Melbourne, Sydney, and WMF Berlin show sets).
• Technical Specs: Cupronickel (75% Copper, 25% Nickel), 11.30g weight, 28.52mm diameter.

Please Note:

• Package Contents: This listing is for a single uncirculated Ex-Mint Set coin only, supplied in a protective Mylar flip.
• Condition Detail: As an Ex-Mint Set specimen, it has never entered commercial circulation and retains its original mint lustre and crisp relief.
• Image Note: Images reflect the exact coin available for purchase.

About this Coin

The 2009 "International Year of Astronomy" 20c is a highly prized milestone release for modern decimal collectors. Because the Royal Australian Mint issued this specific design exclusively within official uncirculated collector sets, it was completely withheld from general circulation. With an extremely low total production run of under 57,000 coins across all standard and special show releases combined, securing this single Ex-Mint Set specimen offers the ideal solution for date-run completionists seeking a pristine, set-exclusive key issue without purchasing the full carded set.