"Industrious, enduring–the 5-cent coin". mint.ca. Royal Canadian Mint. Retrieved February 9, 2019.In 1951, a special commemorative five-cent piece depicting a nickel refinery was struck to celebrate the 200th anniversary of the metal's initial discovery by Swedish chemist Axel F. Cronstedt. Due to the onset of the Korean War, production of this commemorative was halted to preserve nickel for the war effort, resulting in a second non-commemorative 1951 "nickel" made of plated steel.
In 1967, all the circulating coins received a special reverse for the Canadian Centennial; the nickel featured a rabbit.
In proof sets issued since 1996, the five cent coin is made of sterling silver. Some commemorative five cent coins are also made of sterling silver.