This vintage Caterpillar sales service 12 porcelain sign is a rare find from the 1950s, making it a valuable collectible for both gas and oil enthusiasts. The sign features a multi-color design with a heavy steel construction, showcasing the iconic Caterpillar brand. Originating from the United States, this original sign is a unique piece of advertising memorabilia that would make a great addition to any collection of vintage signs.