This is quite an old tie clip and the emblem would indicate it is mid-century before the adoption of the Maple Leaf as Canadian flag.
This is gold tone or plate and has a strong clip. The emblem has a crown under which is written Canada. Around the center is written Maintiens le Droit and along the bottom banner is Royal Canadian Mounted Police. It is 2 inches across. Very good vintage condition. Slightly less bright than it would have been new.