Black Knight #2 comic book from Atlas Comics
While most people think of the Black Knight from the Avengers (or even the one from Monty Python and the Holy Grail), there was one before that.  This one featured a real knight in glorious battles as you can see from this cover.  A great scene of a castle siege with lots of action.

       

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!