Page from the Giant-Man story from TALES TO ASTONISH #61 by Steve Ditko and George Roussos. This story was radically reworked late in the game after Stan was unhappy with what the original penciler, reportedly Dick Rockwell, did with it. Joe Orlando was also involved at some point, supposedly. You can see that the artwork has been replaced in virtually every panel, while the balloons remain.
Uninked Steve Ditko pencils for an unused Daredevil story.
Page from the Doctor Strange story in STRANGE TALES #129 by Steve Ditko
Final page of FANTASTIC FOUR #13 by Jack Kirby and Steve Ditko.
You can see that the final caption was cut out and replaced, for some reason.
Splash page to INCREDIBLE HULK #6 by Steve Ditko
Splash page to the Human Torch story in STRANGE TALES ANNUAL #2 by Jack Kirby and Steve Ditko
Splash page to the Iron Man story in TALES OF SUSPENSE #47 by Steve Ditko and Don Heck.
Splash page to a story from STRANGE TALES #104 by Steve Ditko
Pin-up page from AMAZING SPIDER-MAN ANNUAL #2 by Steve Ditko
Uninked Steve Ditko pencils from AMAZING SPIDER-MAN #38, his final issue on the series.