Celebrate the 100th anniversary of insulin with this 2021 commemorative collector keepsake toonie from Canada. The coin is in uncirculated condition and is a perfect addition to any coin collection. This special edition toonie features a unique design that pays tribute to the discovery of insulin by Canadian scientists Frederick Banting and Charles Best in 1921. The coin has not been certified, but it comes in its original packaging and is ready to be displayed or stored. Don't miss out on this limited edition toonie that commemorates an important moment in Canadian history.