Hello
1st CDN Div was still being used and Vehicles in Europe had the Div marking on it.
I have a photo of an M113 APC with a white number 60 on a red background, being used in Europe by the Black Watch of Canada.
From the same era i have seen photos of Canadian Guards vehicles in Germany with a white 7 on a red background.
http://www.canadianguards.ca/guardair.htm 1962 in Germany
Any of the Dodge M37's we bought for Korea, stayed in Korea and they were the US version. This was discovered by two researchers working on a book for Clive Law.
This may not help with identifying the unit, but it does verify that the red background was used on 1st Div vehicles.
Thanks
Eric