1978 - My Very First Piece of Original Comic Artwork

I bought this piece back in 1978 from my local comic book store back in Erie, PA. It's by John Totleben (local Erie boy) I had forgotten all about it and discovered it hidden away the other day. What a great treasure to uncover after 30 years! I was so excited. I was a huge fan of the Edgar Rice Burroughs "Tarzan" books back in 1978. Although I can't seem to remember if this is Tarzan or Korak, Son of Tarzan? But who cares, I love it!