From the Lockheed Martin licensed collection, this SR71 Blackbird vintage metal sign measures 24 inches by 12 inches and weighs in at 3 lb(s). This vintage metal sign is hand made in the USA using heavy gauge american steel and a process known as sublimation, where the image is baked into a powder coating for a durable and long lasting finish. It then undergoes a vintaging process by hand to give it an aged look and feel. This vintage metal sign is drilled and riveted for easy hanging.