Commando Comic #568: 'Boss of the Barbary Apes' (1971)
 
Since 1713 the mighty Rock of Gibraltar has been British, a massive stone fortress guarding the Mediterranean. But in World War Two, the Nazis had plans for capturing the Rock and knocking out the garrison by using deadly nerve gas. And all that stood in the way of the Germans was one lance-corporal and one small Barbary ape.
 
One Comic for Sale in Fair to Good Condition