My original tumblr post was here. This image was researched by Bacchus at ErosBlog as part of the “Δ commission.” The research was originally published at Hedonix as “Δ 068 – Robot Control Panel.” Here is what Bacchus found.

This image is a page from the October 1929 issue of Hugo Gernsback’s Air Wonder Stories (available in its entirety here). The artwork is signed “Paul”, which corresponds to the magazine’s art director Frank R. Paul, as seen on the masthead:

The artist Frank R. Paul is one of the most influential illustrators in the history of American pulp magazines. He is perhaps most famous for his illustration of Martian robots on the cover of the 1927 Amazing Stories magazine where H.G. Wells’s War Of The Worlds was first serialized.