The Moscow Treasures & Traditions Exhibit Sponsored by Boeing 1990-1991 Lapel Pin is a collectible advertising item from Taiwan. This lapel pin likely features a design related to the exhibit, showcasing Moscow's cultural treasures and traditions. Being sponsored by Boeing, the pin may also include a nod to the company's involvement in the event. This unique memorabilia piece serves as a remembrance of the special exhibit and the partnership with Boeing during that time.