Yeah, Roy, you are right. With Shermans, "never say never!" What I meant to say was that I have never seen photographic evidence -- until you referred to the pic in that George Forty book ("M4 Sherman" by George Forty, Blandford Press, copyright 1987).
It certainly is an M4A1E8 -- and it has certainly seen some time out in the dirt! Loads of stowage, too, so I think that rules out a post-war photo. Too bad it's such a small pic (the tank doesn't fill a 1-inch by 1-inch square -- where's my stereo microscope??).
Thanks for your post, Roy. I'm going to build this puppy (it's moving toward to top of the stack) and make sure I bring along the book and pic to the contests!