My original tumblr post was here. It comes to us via Little Bunny Sunshine. A bit research shows it to be a crop from the June 1942 cover of Famous Fantastic Mysteries (ISFDB entry here, done by Virgil Finlay:
I found the full cover at Pulpcovers.com.
My original tumblr post was here. I reblogged the image from this tweet with the explanatory text “Tweeted by Retro Ninja @Nero222.” What the photographer is so shocked at I am uncertain, though I think it would be cool mad science if you had a camera that made the model from the image, rather than the other way round. As it is, this appears to be an example of Mexican pulp art.
My original tumblr post was here. This image is the Spring 1957 issue of Space Science Fiction Magazine (one of only two issues). The ISFDB entry for the issue is here. The artist who created the cover is listed as Tom Ryan. The image was first posted on Tumblr by Vintage Geek Culture and comes to us via Not Pulp Co vers.
My original tumblr post was here. This image was first blogged on Tumblr by Republic Domain! with the explanatory text “Frank Kelly Freas, May 1954.” The ISFDB entry for this issue of Planet Stories is here.
My original tumblr post was here. This image is the cover of the March 1958 edition of the UK sci-fi magazine Science Fiction Adventures. The ISFDB entry for this issue is here. The illustration is by Jose Rubios. It was first posted on Tumblr by Vintage Geek Culture.
My original tumblr post was here. This image is the cover of the September 1940 edition of Super Science Stories, done by Robert C. Sherry. The ISFDB entry for this issue is here. The image was first posted on Tumblr by Vintage Geek Culture.
My original tumblr post was here. This image of a cover of Chaos in Arcturus was first posted on Tumblr by Not Pulp Covers and comes to us via Little Bunny Sunshine.
My original tumblr post was here. This image was first posted on Tumblr by Vintage Geek Culture with the comment “I love Italy.” The image is what appears to be the cover in an Italian sci-fi series Cronache del Futuro, a book titled Il mistero di Alfa XVII written by Berto Ciambri.
My original tumblr post was here. According to the ISFDB, this is an Australian publication. Pulp writer Oscar J. Friend has extensive writing credits. The image originally appeared at Mad Scientist Appreciation Guild.
My original tumblr post was here. This is the November 1942 edition of Fantastic Adventures. The cover was done by H.W. McCauley. It was first posted on Tumblr by Good Girl Art and comes to us via inkycurves. The ISFDB has an entry for the issue here and also provides us with a cleaner version of the cover.
