Teck Publishing. The “Scientific Fiction” label is kind of interesting.
“A. Sigmond” has to got to be a pseudonym, right? But these covers are awesome. Who would want to remain anonymous for producing them?
Teck Publishing. “Amazing Stories” did a run of covers in this style over a period of nine months in 1933. (You can find them all over at Wikimedia Commons, and they’re in the public domain.)
What style of art is this? Would it be art deco?