The Mighty Thor (1966) #177, pg. 16

Besides being a very nice companion to the other Thor #177 piece I've got, this is a great example of Kirby's ability to portrait emotions, something that's not so commonly discussed.
In this case, we have the agonizing Balder, the first worried and later griving Lady Sif and the calm of Odin, promising revenge. Also very clean backgrounds, as was the rule with the Kirby/Colletta team, which only emphasizes the emotions here portraited.