2021 – 2 Dollars Toonie Canada – Insulin

The 2021 Canadian $2 coins commemorating the 100th anniversary of the discovery of insulin come in two versions: colored and uncolored. The uncolored coin features an elegant, classic engraved design by Canadian artist Jesse Koreck, showcasing the double date “1921 – 2021” on the reverse, along with symbols representing the discovery at the University of Toronto—an early insulin vial, an Erlenmeyer flask, a mortar and pestle, and a maple leaf. The inner core of the coin illustrates insulin in monomeric form, extending onto the outer ring with a depiction of the hormone at work in the bloodstream. The obverse features the effigy of Queen Elizabeth II by Susanna Blunt. The composition includes a three-ply nickel finish plated steel outer ring and a three-ply brass finish plated aluminum bronze inner core, with a diameter of 28 mm and weight of 6.99 g. The coin retains a brilliant uncirculated finish, presented in a special wrap roll of 25 coins that highlights the significance of this Canadian medical breakthrough without the blue coloration used in the colored version.​