For you vintage illustration junkies...
Okay, this website is not very well designed and is a tiny bit complicated, BUT it is soooo rich with trillions of references and high res scans of so many wonderful illustrations from the days… Chris Mullen, the owner is amazingly knowledgable too. Don't thank me…that's what friends are for right? http://www.fulltable.com/vts/f/fortune/covers/covers.htm