Juan, first of all, welcome to this forum!
I see you already found the pictures of Rod Shaver's T16 on
my T16 site. Here's hoping you will post some pictures of your T16 soon.
As Stewart explained, by June 1944 Canada had put the T16 into use towing the 6-pdr AT gun, but also as a 4.2-inch Mortar Carrier. See the following threads for more information:
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Wartime T16 pictures
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Carrier, 4.2 inch Mortar (T16)
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Picture ID challenge: T16's near Caen
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A Brief History of the T-16 Carrier
Hope this helps,
regards,
Hanno