The original Spider-man design by Jack Kirby. You can see his artistic style all over this. Still I'm glad Steve Ditko's design replaced this one as the design says "generic space man with a ray gun" to me.
Probably my favourite drawing of Doc Doom (though this looks like it may have been redrawn by someone else from the classic 'Marvelmania' poster. Still, it's a nice rendition, & kinda cool to have a clearcut version!