1992 $5 Proof Coin Commemorating the International Year of Space RAM 1992 $5 Unc Coin International Year of Space Immaculate Gem Mint 1992 Australia 5 Dollar Space Commemorative Coin Tays Realty & Auction Auction: ONLINE ABSOLUTE AUCTION: COINS. In original box and in new condition 1992 Five Dollar Proof Coin Commemorating the Year of Space Sovereign Specifications: Alloy: Aluminum Bronze Mass: 28 grams Diameter: 38. 90mm Thickness: 3. 50mm Please note: Coin in excellent condition, box has a bit of wear and tear. Our Price: $110 Welcome to the Gold and Diamond Exchange eBay Store! Sydney Based Store that has experience in the jewellery industry for over 25 years. Specialising in selling and buying jewellery, precious metals, coins, bullion, diamonds and watches. All our diamonds have been professionally assessed and examined by diamond experts and gemmologists to ensure authenticity. ID Region of Origin: Australian Brand Mint: Royal Australian Mint Certification: Certified Strike Type: Proof Era: 1990s