(Click on images to enlarge.)
Bonus: Below, an ad I clipped from a newspaper sometime around 1974.
Bonus: below, a unique photo of McDowell as Cornelius in a rare good mood; most likely thinking of his fiancee, Zira.
Below is one of my pencil drawings of Galen from the TV series, drawn in 1974 sometime, probably while in homeroom. I was big into Apes that year!