According to this site, it’s Walter Baumhofer: https://www.pulpartists.com/Bio%20Materials/BW2/1935-05,DmMyst.jpg https://www.pulpartists.com/BW2.html Reply
According to this site, it’s Walter Baumhofer:
https://www.pulpartists.com/Bio%20Materials/BW2/1935-05,DmMyst.jpg
https://www.pulpartists.com/BW2.html