I've been browsing the many pictures on the Tank Museum's Facebook page
A gentleman called Lawrence Kelly has posted ths very interesting shot of some Grant CDLS (For discussion purposes only)
I've nabbed a copy and popped it onto my photobucket account. I just wanted to draw attention to the photo but couldn't link directly to it. If this is not acceptable I'll delete the copy straight away.
Someone with an interest in researching CDL's might have a unique opportunity here as the posters' grandfather took the photo. It's worth looking through the rest of the photo's too.