Superscope Story Teller books were very similar to Little Golden Books in appearance, but came in a package with a cassette tape. I don't have the tapes, but I have three of the books in Superscope's Tarzan series. The stories were rewritten from the Sunday newspaper strips by Burne Hogarth. "Tarzan and the City of Diamonds" is from a 1947-1948 continuity.
The story, with its beautiful and sexy women, seems a bit mature for the young audience at which Superscope usually aimed their books.
Copyright © 1977 Edgar Rice Burroughs, Inc.