The character in the animation cel is Clover from the 1986 animated TV series My Little Pony 'n Friends, specifically from the "My Little Pony Tales" segment. The "CA" mark is a production note or studio marking, likely indicating the use of a Caran d'ache pencil on the cel or a specific production code, which is common in traditional animation cels.

My Little Pony Tales was part of the broader My Little Pony 'n Friends series and focused on a group of young ponies and their slice-of-life adventures. Clover is a prominent character in these shorts. The artwork appears to be an original production cel, a hand-drawn and painted sheet of transparent plastic used in the traditional animation process before digital techniques took over.