It's interesting that JB says the Spider-Man/Man-Thing cover may be on it's way to being one of the homaged in history. I'm not sure I recall seeing it many other places. If I had to guess I would have said X-Men #141.
I just couldn’t resist when some of these pages came up for sale. The Thing drawn by Wilson and Sinnott. I really got into comics during this era with Ben in his post FF wrestling suit. I read this Questprobe comic so many times when I was a kid. Glad to be the caretaker of this piece for awhile.