This appears to be from the "Petit Rucksack" series, which was released in the 1990s (around 1996 or 1997). This item has a small zipper on the back, allowing you to store small items like coins or lip balm. Main Features: Design: Retro style featuring red overalls and a striped shirt. Function: The back is a mini rucksack (small item holder), and it can be attached to bags as a key holder. As shown in the third image, there are some areas that have yellowed slightly.