Prince George of Cambridge, son of Prince William and his wife Kate, turned one on Tuesday.
The Mint is releasing coins that feature the Queen with her three heirs —Prince Charles, Prince William and Prince George.
Prince George is shown wearing christening robes, resting in his father's arms.
The $20 silver coin and the $200 pure gold coin are available to order.
Interim president Marc Brule says the Mint will continue to celebrate milestones in the lives of the Royal Family.
"We have proudly handcrafted new coins with a unique portrait featuring four generations which will be a beautiful addition for any royal collection," he said.