Speedy in Oz (c.1934)

Speedy (from The Yellow Knight of Oz) returns for another adventure. While inspecting a dinosaur skeleton, Speedy is blown by a geyser into the air. The skeleton comes magically to life and becomes Terrybubble, a live (although fleshless) dinosaur. Terrybubble and Speedy land on Umbrella Island, a magic floating island, which has been captured by a giant.

 Market value of this Oz title from various retailers