The City of O’Fallon Missouri Founded In 1856 medallion souvenir key ring is a commemorative piece celebrating the history and heritage of O’Fallon, Missouri. This key ring features a detailed medallion showcasing important landmarks and symbols of the city, making it a perfect collectible for those who appreciate the rich history of this Midwestern town. It serves as a reminder of the city's past and a symbol of pride for its residents. Minimal wear.