2026 Canada 100th Anniversary Birth of Queen Proof Silver Dollar Coin. You are looking at. The coin is in mint uncirculated (UNC) condition, making it a perfect addition to any Canadian coin collection or a wonderful gift for collectors. Weight: 23.17 gm. Size/Diameter: 36.07 mm. Condition: Mint Uncirculated (UNC). Issued By: Royal Canadian Mint. Genuine Royal Canadian Mint collector coin? Brilliant proof strike with sharp details?? Ideal for collectors, investors, or gifting.