Very rare, this is Valley of the Dinosaurs Presentation Pitch Original Art (Hanna-Barbera, 1974).
“Flung into a world that time forgot!” This show premiered on 9/7/74 on CBS and featured science teacher John Butler, his wife Kim, kids Greg and Katie, and their dog Digger. They get swept up in a whirlpool on the Amazon and end up in a prehistoric cavern. The met Caveman Gorok and his family Gara, Lok, Tana, and their pet dino Glump. This is the original “Pitch” art that was presented to sell this show. The lot has an oversized graphite drawing of the two families meeting.