Obverse: Features a portrait of Queen Elizabeth II wearing a tiara, designed by Arnold Machin. The inscriptions “100 DOLLARS” and “ELIZABETH II” surround the portrait.
Reverse: Features an open book, with the Canadian coat of arms on one page and a maple leaf on the other. The inscription “CANADA” appears above, while the year “1982” and the word “CONSTITUTION” are shown below.
About the coin: In 1982, the Royal Canadian Mint issued this commemorative gold coin to mark the patriation of the Canadian Constitution – an event that gave Canada the ability to amend its Constitution independently, without requiring the Parliament of the United Kingdom. The reverse was designed by Friedrich Peter and engraved by Walter Ott. The coin is struck from 91.67% pure gold, weighs 16.97 g and has a face value of 100 Canadian dollars. The Proof coin has a mintage of 121,706 pieces.