This vintage Champion spark plugs porcelain sign from 1957 features a 12 diameter multi-color enamel design, making it a collectible piece of gas and oil memorabilia. Made in the United States, this reproduction sign showcases the iconic Champion brand in a classic and nostalgic way, perfect for antique and advertising enthusiasts. Ideal for adding a touch of retro charm to any collection or decor, this porcelain sign captures the essence of the mid-20th-century automotive industry.