The Uncanny X-Men #141 Comic Book from Marvel Comics Group
One of the best X-Men stories of all-time!  Also a great cover!  I remember the first time I saw the cover and looked at all the X-Men who it said were slain and was captured.  I did not know at the time it was a future story and really thought they killed them all.  Should have known that Marvel would not be that insane. 

This is a scan of an old comic book. This item is not for sale. But you can find it on ebay.
Click below to go to ebay and search!