On the Yowp blog, your first stop for Hanna-Barbera stuff, there was a post yesterday showcasing some early concept art that was used in making The Flintstones.

The items had been put up for auction at the Van Eaton Gallery in Sherman Oaks, California, and two of them are listed as having already been sold. No artist is listed. The person who runs Yowp wonders whether the items are “retro” or “actually drawn in 1959 or 1960 in preparation for The Flintstones.”

My two cents: Nobody who was familiar with The Flintstones in its mature state would have drawn anything looking like this. That’s my guess. But I don’t know. 

The three images below, you can see a larger image by clicking on them.
 

“Fred Flintstone, Wilma Flintstone, Barney Rubble”: sold for $4000
 

“Fred Flintstone and Ann Margrock?”: Still available!
 

“Fred Flintstone”: sold for $2000
 
via Tombolare