Giant Tentacle-Faced Monster Greeting Card

The front of this greeting card is the cover of an issue of the Thrilling Wonder Stories pulp science fiction magazine. In this image we see a weird giant scaly monster with tentacles sticking out of its face. A mad scientist with a strange contraption and a man in a spacesuit try to fend off the monster with their ray guns, while a woman trapped in a bell jar looks on in terror.