Although I am a child of the 1960s, imagery from the 1950s and earlier is quite fascinating to me. One of the wonders of studying a writer like Bradbury is that his peak output dates from earlier decades. While his texts are readily available between modern covers, there is a distinct charm in finding an earlier edition of his work. The 1940s pulp magazines are particularly interesting, as they place the familiar short stories - works we know best from Bradbury's books - in their original publication context.
On a related note - stay with me! - I was amazed to see some recently discovered 1950s posters, which have been found undisturbed in their original context. Part of a London Underground station, Notting Hill Gate, has been closed to the public since the 1950s - and yet advertising posters from the era have miraculously survived intact and undisturbed for fifty years or more. You can see these fascinating images on mikeyashworth's Flickr page.