Mind-blowing 1973 Canadian Proof Dollar with absolutely insane rainbow toning! This official Proof strike (RCMP Centennial) features the iconic Mountie on horseback in stunning detail, with deep mirrored fields covered in vibrant multicolored iridescence. The colors shift and explode under light – a true masterpiece that stands out like no other. The Proof version showcases the classic Mountie design with superior quality and mirror finish. These commemoratives are popular, but one with this level of dramatic natural rainbow toning is a rare collector’s dream. Mintage & Mint Location. 1,031,271 Proof dollars were minted at the Royal Canadian Mint in Ottawa. Composition: 50% Silver / 50% Copper. Weight: 23.3 grams. Condition: Official Proof with spectacular rainbow toning (photos capture the intense iridescent colors and mirror fields). This is the real deal – a Proof coin with that once-in-a-lifetime toning. Incredible eye appeal and character! Browse my other toned Proof and world silver coins.