Canada Military Insignia
IV Princess Louise Dragoon Guards Cap Badge .
Original badge with Coronet. WW2 issue.
The Kings Crown was worn from 1902 to 1952, representing the reigns of several Kings.
The Queens Crown of Elizabeth II was worn from 1953 to 2022.
An original item:
All reasonable offers will be considered
References:
Head-Dress Badges of the British Army by Kipling & King.