Per Art Lortie from GCD-Chat discussion list (10 September 2015) that the head of the alien bears a striking resemblance to the alien on the cover of Fantasy Times (James V. Taurasi and Raymond Van Houten, 1941 series) #74 (1 February 1949) drawn by Herman von Tokken, known as Tok.
The inside front cover PSA is produced in sequential-arts comics format.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Writer and art credits confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Two pages of trivia quiz questions about Venus.
Writer and art credits confirmed from Julius Schwartz's editorial records, provided by DC Comics.