Photographs of Canadian Army vehicles display a number of variations to the 'foliage pattern'.  The first is what was know as the 'Mickey Mouse Ear' pattern.  The edges of the dark patterning was made up of circles of varying diameter. The patterning was to reach into wheel wells, underbodies and windows (which would show up as dark patches to observers).  There is photographic evidence that this took some time to get right.  This brand-new Chev 3-ton Dental Van displays several errors;  the patterning is not continuous along the bottom of the bodywork, the top pattern does not extend into the windows and there are rather more individual 'spots' than ususal.
 
 
 

This Diamond T 980 tractor of the Heavy Section, 1st Recovery Company RCEME displays a very definite Mickey Mouse Ear pattern on the body, but a much less sharp one on the tractor.  The company was testing a captured Sd. Ah. 116 and overall tracks on the rear bogie made from Pz Kfw. IV tracks in the photo.  Italy 1944
 
 
 

Civilian workers apply the Mickey Mouse Ear pattern to Chev C15A 15-cwt trucks at Tom Garner Ltd at Olympia, Manchester, UK, 1942.  Note the contrast between the overall colour and the dark patterning.  Photo courtesy of the late Bart Vanderveen and 'Wheels and Tracks' magazine.