COMIC LEGEND: Jack Kirby originally drew the Black Panther as wearing a mask that did not cover his entire face, even after the Panther's first appearance!
The author makes a great discussion on how Black Panther's depiction has changed throughout the almost 50 years the character has been around. I never really thought that there was a time when Black Panther was supposed to have a half mask. This means that the portrayal of Panther in the animated Ultimate Avengers 2 is actually more along the lines of what Jack Kirby had in mind. I had not idea.
Comic Book Legends Revealed #256 | Comics Should Be Good! @ Comic Book Resources