The 1991 Mystery of the Lost Arches McDonald's Happy Meal Toys Complete Set of 4 is a collectible toy set featuring items from McDonald's. This set includes four toys that were released as part of a promotion tied to the "Mystery of the Lost Arches" campaign. Made in China, these toys are recommended for children aged 4 and up, appealing to both girls and boys who are fans of McDonald's. Each toy showcases a unique design and is part of the McDonald's character family, making it a sought-after item for collectors of fast food premiums.

#2