This Erie Railway railroad train hat pin tie tack is a metal accessory featuring a push-on backing for easy application. The design is a nod to transportation history, making it a unique and eye-catching addition to any collection. With the California Prop 65 Warning, buyers in California are informed about potential chemical exposures, adding an extra layer of awareness to the purchasing process. This hat pin tie tack is a charming and historical piece that is perfect for collectors or train enthusiasts.