An old-time traditional animator's term, a "Key" is a thumbnail of a character or a background element with color reference. Acme's Character Keys are composed of a cel layer floated over a lithographic background. The cel features a color rendition of the character while the background features sketches and color reference.
Each character key comes matted with a title tag and a certificate of authenticity.
Matted measurements are 8 inches by 6 inches.