The Thunder King

Not a favorite of mine but I love the faux three dimensional effect of having the supposed thug spilling over the title banner.  Colors are nice and the renderings are fine but the overall effect is a bit boring.  It would have been nice to have the villain's hand on the switch pass over the masthead, but that is usually looked down upon.  This is the first pulp appearance of Margo Lane and that leads me to believe this is the first visualization of Miss Lane on a cover.  I haven't read this one but this review says it's a fun read, not great but it is 1941 and not many qualify.