What animated series features Fleischer interacting with the character Koko the Clown?

The series that features Fleischer interacting with the character Koko the Clown is "Out of the Inkwell." This animated series, created in the early 1920s by Max Fleischer, blends live action with animation, showcasing Fleischer himself as he interacts with Koko, who is a cartoonish character that embodies the charming and whimsical spirit of early animation. The unique format of combining real-life and animated elements allows for a playful exploration of the animation process, often breaking the fourth wall. This interaction not only highlights the innovative techniques used during that era but also captures the viewer's imagination by illustrating the relationship between animator and character.