Splash page from STRANGE TALES #99 by Jack Kirby and Dick Ayers.

A page from THOR #159 by Jack Kirby and Vince Colletta.

One partial border note from Kirby remains:

AND GATES OF ASGARD OPEN TO HIM

And there’s an art correction request at the top from Stan:

MAKE MORE LIKE HAMMER HEAD

A page from the Giant-Man story from TALES TO ASTONISH #51 by Jack Kirby and Dick Ayers.

Stan’s written a few notes in the margin of the final panel:

YOU CAUGHT TOP BEFORE & HE SPUN AWAY—WHY NOT NOW?

FOR THE SAME REASON YOU CAN’T GET AWAY, WASP—GLUE ON MY HANDS!

SO WHO’S COMPLAINING?

There’s also a note from either the letterer or Sol Brodsky to Stan about overwriting, which is pretty funny:

STAN—BE CAREFUL OF TOO MUCH LETTERING IN PANEL—YOUR ALLOTMENT OF SPACE IN YOUR OUTLINE PENCIL BALLOONS IS NOT ENOUGH FOR YOUR (words cut off.)

It also looks like there’s part of a word in yet another handwriting that says CUT, perhaps indicating that Stan’s script for that sign-off caption was edited down to fill the available space.

A page from FANTASTIC FOUR #10 by Jack Kirby and Dick Ayers.

In the third and fourth panel, the word balloons have been changed from KISS to SMILE and KISSED to MET, presumably because the Comics Code requested it. In the first panel, YOUNG was previously some other word with an NG at the end, but there’s not enough there to make out what it had been.

There’s also a note to Dick Ayers written inside panel six:

DICK 1/2 VISIBLE 1/2 INVISIBLE

It looks too like that cityscape behind Sue and the masher in panels 3 and 4 was added by Dick Ayers at Stan’s direction—his rough sketch for where to put the skyline can still be detected.

A proposed redesign of Captain America by Jack Kirby done during the period in the 1960s when Joe Simon was waging a court battle to regain rights to the character.

Here’s Jack Kirby in the Marvel offices in 1966.

Here are both Jack Kirby’s uninked pencils and the final inked page by George Roussos (working under the pen name of George Bell) for a page from the Thor story in JOURNEY INTO MYSTERY #101.

At the bottom of the inked page, there’s a border note by Stan:

MINING ROBOT CAN MAKE ORE INTO POWDER

In commemoration of the currently-running AVENGERS VS X-MEN series, here’s the first battle between the X-Men and the Avengers from X-MEN #9, by Jack Kirby and Chic Stone.

A few fragments of Kirby’s border notes remain:

BATTLE RAGES

YOU CAN’T MOVE

I.M.

A terrific page from FANTASTIC FOUR #5 by Jack Kirby and Joe Sinnott. Joe inked only this one early FF issue, but it garnered so much positive mail that Stan kept it in mind—and when he could afford to pay Sinnott better years later, Joe became the regular inker on the series.

A beautiful early Hulk page from HULK #3 by Jack Kirby and Dick Ayers.

One handwritten border note by Stan Lee is visible:

AS HE GOES UNDER CALLS FOR HULK