Great cover!
Im currently reading the "Port of Peril" by Otis Adelbert Kline. Its the third in the Buccaneers of Venus series from the 30s
I cant remember what magazine it was originally in but it is amazing how these Pulps reflect the attitudes of the times.
Nearly all Orientals are depicted as mysterious, and scary in these periodicals. In particular in "The port of Peril" The "yellow race of Men" in the Book are described negativly and in a stereotypical way that would be completly racist by todays standards, and rightly so.
I have noticed this to a degree reading other authors of the same time period.
Im guessing this was probably due to the years leading up to World War 2 and the publics feeling towards Asians at the times.
Great reading by truly great authors but you really need to remember the times they were written when you read them.
Not judging the authors of the day, just making an observation.