Colossus by Jim Lee

1990 - Anatomy of a Cover - Captain America #383 by Ron Lim and Jim Lee

1989 - Anatomy of a Cover - Punisher African Saga

by Jim Lee and Carl Potts

Wolverine by Jim Lee

1989 - Anatomy of a Cover - Wolverine #24 By Jim Lee

1989 - Punisher War Journal #5

By Carl Potts, Jim Lee, and Scott Williams

Original art

 Digital version

Printed version

1989 - Anatomy of a Cover - Alpha Flight #75

1988 - Anatomy of a Cover - Alpha Flight #58

By Jim Lee and Al Milgrom

1988 - Anatomy of a Cover - Alpha Flight #65

By Jim Lee and Marc Siry

1989 - Anatomy of a cover - Conan the Barbarian #218

http://www.comicartfans.com/GalleryPiece.asp?Piece=1057834&GSub=67067

1989 - Anatomy of a Cover - Punisher War Journal #10

By Jim Lee and Carl Potts

http://www.comicartfans.com/GalleryPiece.asp?Piece=1106731&GSub=83304

1988 - Alpha Flight Promo Piece

By Jim Lee and Al Milgrom

http://www.comicartfans.com/GalleryPiece.asp?Piece=704658

1987 - Jim Lee's Correspondence With Marvel Comics

A few rejection letters and finally his first assignment and his reply. All of these were shared by Jim Lee on his Instagram page.

1987 - Alpha Flight #51 - Jim Lee's first Marvel assignment

Jim Lee's first assignment for Marvel Comics - Alpha Flight #51, 1987. 19 days to draw 22 pgs!

Grabbed from http://instagram.com/p/f1ztzNn9ct/. Tip of the hat to AlphaFlight.net.

1977 - Wolverine by Jim Lee (Age 13)

Found in Marvel Age #104:

Claremont and Lee's X-Men

 Found over at: http://unpublishedxmen.blogspot.ca/2013/07/jim-lee-and-scott-williams.html, as well, I've seen going around on Tumblr, so I thought I'd see if anyone knows that this was for?

It looks to be circa 1991. Jean's costume was obviously never used. Thinking it might have been an promo piece. If you know more about it, please let me know.

1986 - Marvel Press Posters

A big thanks to Christian Cogan who was kind enough to take photos of his recently rediscovered stash of Marvel Press posters.

1988 - Jim Lee's The Punisher War Journal Masthead Illustration Original Art

http://comics.ha.com/c/item.zx?saleNo=7066&lotNo=94735

Wolverine and Psylocke by Jim Lee

A lovely water coloured piece by Jim Lee.

http://unpublishedxmen.blogspot.ca/2012/07/jim-lee-week-concludes-psylocke-and.html