King George V - 5 cents
of nickel shortages during World War II, the Royal Canadian Mint
replaced the standard "nickel" with the tombac 5 cent piece.
Tombac is an alloy of copper and zinc. First introduced in 1942,
the reverse still depicted the beaver, and was given 12 sides to
distinguish it from the copper penny. In 1943,
the victory V nickel, depicted above, was introduced.