20 Dollars - Elizabeth II Platinum Jubilee

Canada has issued commemorative $20 silver pieces almost continuously since the 1980s, to the point where the format risks invisibility. The Platinum Jubilee issue at least marks something genuinely rare: Elizabeth II became the first British monarch to reach 70 years on the throne, surpassing Victoria's record of 63 years set in 1900. She died in September 2022, roughly three months after jubilee celebrations concluded, making this effectively a posthumous commemorative produced in the same calendar year as her death.