The original image was from the cover of ‘Science and Mechanics’ November 1931 issue.
The image has been public domain for a long while now though the original artist worked for Gernsback Publications.
I love old sci-fi art like this and patched it together into quick, background sized images to share with you.
More resolutions can be found at my DA page. http://rockerx-rx.deviantart.com/#/d394khn