25 Cents KM#81.1 5.0500 g., Nickel, 23.8 mm. Ruler: Elizabeth II (1952-date). Subject: 100th Anniversary of the Royal Canadian Mounted Police (RCMP). Obv: The portrait in right profile of Elizabeth II, when she was 39 years old, is surrounded with inscription "ELIZABETH II D • G • REGINA" (Elizabeth II, Queen by the grace of God). Rev: A mounted RCMP officer is surrounded with the face value, the inscription "CANADA" and the dates "1873" and "1973". Obv. Designer: Arnold Machin Rev. Designer: Paul Cedarberg Edge: Reeded