This vintage Blackhawk corn seed porcelain farm sign is a must-have for collectors of gas and oil advertising memorabilia. Measuring 35 inches by 12 inches, this original piece features multi-color design and is made in the United States. The sign’s theme is gas and oil, and it is a great addition to any collection of vintage advertising items. The sign is in its original state and has not been modified. The brand is SEED, and the type of advertising is a sign. The color is multi-color, and the date of creation is unknown. This collectible item is perfect for anyone interested in vintage advertising and gas and oil memorabilia.