FANTASTIC FOUR (1961) #200

The FF take on a high impact mission to save Latveria from the wrath of Doom. Plus, Reed must face his arch nemesis in a final showdown! When Titans Clash! Here it is… the ultimate showdown between Reed Richards and Victor Von Doom, the all-out battle that has been brewing and hinted at from as far back as issue #5! WIth his clone successor dead and the rebels beating down the castle doors, Doom has but one ace in the hole left-the Hypno-beam which will enslave the delegates at the United Nations, giving Doom total control of the world.… Notes Giant-Size Anniversary Issue! Features the Hostess Fruit Pies ad, Thor–In Good Overcomes Evil! Mark Gruenwald’s assistant editor credit taken from letters page header.