Awesome finds Stargazer2006! Photography, even for ads, can be great art, but these old drawn or painted illustrations are, if not art, then good eye candy and I wish we could see some of that in today's adverts. B)
Interesting that, beside racialist slurs, most of what's written in the first three adverts is still true.
At least one of these has been reprinted as a poster. I have a 20 by 27 inch copy of ad-convair 19 "Freedom Has a New Sound." The only change was the addition of Reprinted from Collier's, July 8, 1955 in the Lower corner.