1983 - Anatomy of a Cover - Rom #48

http://comics.ha.com/c/item.zx?saleNo=807&lotNo=9113#Photo

1992 - Original Cover Art for Spider-Man Wedding trade paperback

http://comics.ha.com/c/item.zx?saleNo=806&lotNo=6983#29102910715

1983 - Moon Knight pinups by Kevin Nowlan

From Moon Knight #28:

1986 - Anatomy of a Cover - Dazzler #41

1988 - Conan Portfolio by Bart Sears Portfolio

http://comics.ha.com/c/item.zx?saleNo=12061&lotNo=31359

1989 - Anatomy of a Cover - Wolverine #12

By Kevin Nowlan.

1987 - Transformers: Head Masters House Ad

1986 - Anatomy of a Cover - Marvel Saga #14

By Keith Pollard

http://www.romitaman.com/GalleryPiece.asp?Piece=17987&ArtistId=954

Daredevil vs Wolverine by Rick Leonardi

http://www.comicartfans.com/GalleryPiece.asp?Piece=350016&GSub=54752

Mike Perkins homage to Uncanny X-Men #210

1988 - Anatomy of a Cover - Amazing Spider-Man #311

http://www.romitaman.com/GalleryPiece.asp?Piece=17950&ArtistId=1048

New Mutants Commission by Bob McLeod

Mohawk Storm by Gene Gonazles

http://genegonzales.blogspot.ca/2010/05/stormy-weather-commissions.html

1981 - Anatomy of a Cover - She-Hulk #20

By Mike Vosburg and Al Milgrom

http://www.romitaman.com/GalleryPiece.asp?Piece=17895&ArtistId=990

1976 - Rampaging Hulk Calendar Piece by Walt Simonson

The Rampaging Hulk. Pen, brush, and India ink. 17.5 x 18.3. 1976.

"I believe this was for a Marvel calendar back in the day. Some of my earliest work for Marvel Comics. I think Rampaging Hulk was the first Marvel Universe character I drew in stories. The various supporting characters from the first issue are scattered around the drawing. At least, I remember it that way.” 

— Walter Simonson

1988 - Anatomy of a Cover - Nick Fury vs. S.H.I.E.L.D. #1

By Jim Steranko!

Storm and Rogue by Conny Valentina

X-Women by Alan Davis

1979 - Anatomy of a Cover - Micronauts #9

By Michael Golden.

1980 - Roy Thomas leaves Marvel for DC

From Starlog #38 (Sept 1980)

1980 - Anatomy of a Cover - Amazing Spider-Man #208

http://comics.ha.com/c/item.zx?saleNo=806&lotNo=6987#Photo

1989 - Anatomy of a Cover - Wolverine #14 by Kevin Nowlan

http://kevinnowlan.blogspot.ca/2010/01/wolverine-14-cover-art.html

1989 - Anatomy of a Cover - Marvel Comics Presents #21

By Walt Simonson

1978 - The Amazing Energized Spider-Man by Remco