USPS lapel pin Bicentennial Arizona state flag 13 cents stamp in goldtone metal

This is a collectible USPS tack style lapel pin designed to look like a 13 cents stamp featuring the Arizona state flag for the Bicentennial Era 1776-1976. The pin is done in goldtone metal. See photo for the backstamp. Made in Taiwan, licensed by USPS. The rectangular pin measures 1 5/8 inches across by 1 inch top to bottom. Very good pre-owned condition with light wear from use.