Check the listing for details. St. Louis Police Call Box Challenge Coin. Condition: New, Made in United States. Listed at 34.99 USD. The St. Louis Police Call Box Challenge Coin is a unique and meaningful collectible item for those interested in police memorabilia. This coin represents a piece of history from the St. Louis police force, making it a special addition to any collection. The coin measures 3 inches in height and features a hinged door that opens to showcase the inside of the box. The department’s badge and historical oval emblem are on the back of the coin.The St. Louis Police Call Box Challenge Coin is a unique and meaningful collectible item for those interested in police memorabilia. This coin represents a piece of history from the St. Louis police force, making it a special addition to any collection. The coin measures 3 inches in height and features a hinged door that opens to showcase the inside of the box. The department’s badge and historical oval emblem are on the back of the coin.