This is a 2003 Canadian two-dollar circulation coin, commonly referred to as a 'Toonie'. It features a distinctive bi-metallic construction consisting of a bright polar-gold colored inner core composed of aluminum bronze (92% copper, 6% aluminum, 2% nickel) and a silver-colored outer ring made of nickel. The obverse side displays the right-facing effigy of Queen Elizabeth II, specifically the 2003 coronation anniversary portrait designed by Susanna Blunt, characterized by the absence of a crown. The inscription 'ELIZABETH II D·G· REGINA' surrounds the portrait on the outer ring, along with a small maple leaf mint mark at the top and the date '2003' at the bottom. The coin shows visible signs of circulation including moderate surface scratching, minor edge dings, and a light darkening of the inner core due to oxidation. The strike quality is typical for mass-produced Canadian currency of the early 21st century, with well-defined lettering and clear relief on the royal bust. The coin measures 28mm in diameter and weighs approximately 7.3 grams.

I have examined the 2003 Canadian two-dollar coin via the provided description and visual attributes. The coin is a standard circulation piece featuring the Susanna Blunt effigy of Queen Elizabeth II, which replaced the crowned portrait mid-year in 2003. My assessment of the physical condition indicates a 'Very Fine' to 'Extra Fine' grade for a circulation strike, noting typical contact marks, surface abrasions, and oxidation on the aluminum bronze core consistent with 20 years of public use. From a numismatic standpoint, the 2003 Toonie had a high mintage of approximately 14.6 million units, making it common in the current Canadian marketplace. While collectors occasionally seek high-grade uncirculated versions (MS-65 or higher) or specific minting errors, this specimen shows clear signs of moderate circulation, which limits its market value to its face value. There is currently no significant premium for this date and variety in this condition. Regarding authenticity, while the dimensions, weight, and strike details appear consistent with Royal Canadian Mint standards, a digital examination cannot definitively verify metallic composition or the absence of sophisticated counterfeiting. A physical inspection using a professional scale, caliper measurements, and potentially an X-ray fluorescence (XRF) test would be required to confirm the metallurgical integrity of the bi-metallic bond. For formal valuation beyond face value, provenance from a Mint State roll or certification by a third-party grading service like ICCS or PCGS would be necessary.