Discover this set of ten USPS Sonic Eagle postal logo pinbacks, a must-have for any collector of postal memorabilia or pinback enthusiasts. Each pinback features the iconic Sonic Eagle design introduced in 1993. These pinbacks are ideal for adorning a jacket, backpack, or hat, as a stylish nod to the past. Whether you're a seasoned collector or new to the hobby, these emblematic pieces are a timeless addition to any collection.