Here's another of those lazy posts with very little comment, just a whole bunch of images.
In the past we've had a look at fin-de-siècle Czech magazine pulp. How about some mid-century German and Dutch pulp?
These three are genuinely cool covers:
The last two are credited to a W. van der Zwaan, about whom I can find no more information.
Some of the rest of these are pretty groovy, too. You can't help but notice Mickey Spillane and Carter Brown obviously look much the same in anyone's language.
I know it's a low form of wit to make fun of the sound of other languages, but Poppenstel van de Dood and Clown in Doodsnood have a real charm about them. They sound much too friendly to be thrillers.
UPDATE: Dutch commenter IJSBrand helpfully notes that "Clown in doodsnood means 'Clown in death anguish' ... Poppenspel van de dood, I grant you, is a silly book title. I mean, 'Puppet show of death'?"