Formation patch 1st Canadian Corps (canvas)

When 1st Canadian Corps was formed, it was not anticipated that a second corps would be raised; Formation Patches for units of some arms and services were thus rendered in the colours of their respective arm or service (ie emerald green for the Canadian Dental Corps, blue for the Royal Canadian Engineers, etc.) rather than in red. When II Canadian Corps was raised, and a blue diamond approved as its formation patch, some of the patches worn by I Canadian Corps units had to be changed from arm of service colour to the red of I Canadian Corps.