The Son of Tarzan - illustration by an unknown artist for the 1920 movie serial
THE SON OF TARZAN - 1920 - Movie poster variant - McClurg and G&D, Artist unknown                                                                               $9.99
The illustration above was originally a poster for the 1920, thirteen-chapter serial, THE SON OF TARZAN.  I have no idea who
the artist might have been.  If you know please email me at mjoncar@embarqmail.com.