General Order 24/1931
1. The full dress headdress, described in paragraph 2, is hereby authorized for Officers of the Royal Canadian Corps of Signals and Canadian Corps of Signals.
2. Busby; black lynx, or other suitable fur, 6¾ inches high in front and 7¾ inches at the back. A black cloth bag covering the top and falling down the right side to the bottom. A gilt socket ornamented with the Corps crest on the left side; Black leather chin strap with black enamelled buckle. Scarlet plume.
3. The introduction of the above mentioned headdress will, at present, only affect officers who may desire to provide themselves with full dress uniform. Officers who are in possession of the full dress headdress at present authorized, are permitted to continue to wear them on all occasions when the wearing of full dress uniform is authorized.