Comic Book Plus has a collection of “Atomic Comics” from the late 1940s through the 1950s that attempted to capitalize on the public’s fascination with atomic energy.
Pulp
Pulp Pirate Comics and Stories
Comic Book Plus has a collection of pulp pirate comics and stories.
Pulp Science Fiction Inspiration
This Flickr album has a series of covers of British pulp science fiction magazines. There’s lots here for inspiration.
Retro Tank Paper Model
Here’s a beautiful free paper model of a retro tank. It looks like a lot like some of the tin tanks that my grandparents had stored in their attic — they belonged to my uncles. This would be useful for a variety of early 20th century pulp games.
Spielberg’s Inspirations For Raiders
Shot-by-shot comparison of “Raiders of the Lost Ark” vs. scenes from 30 different adventure films made between 1919-1973.