Here are 11 American Airlines ads by Noel Sickles from 1951 and 1953 issues of Fortune magazine.
Noel Sickles has been featured many times on Today's Inspiration. If you're interested in reading those posts, here are the links:
Noel Sickles (1910-1982)
"You have to understand the construction first."
"I decided just to try illustration"
Sickles' painting style
"You get bored doing a certain thing"
Noel Sickles Condensed
Scorchy Smith and the Art of Noel Sickles
Noel Sickles: Early Years
Noel Sickles and the Art of War
Alex Toth on Noel Sickles
Noel Sickles: an "inquisitive, restless genius"
Some Sickles for Readers to Digest
More Sickles for Readers to Digest
Noel Sickles: Condensed in '62
Noel Sickles: Artistic Integrity vs Selling Out
* The Noel Sickles book - a must read for any serious fan of illustration art - is available from IDW Publishing