Sign reads, "CAUTION RUPTURE DISC" and is sized 7"x10". Would have hung on a large piece of industrial equipment to warn workers where rupture discs or blast caps were located on pressurized equipment like turbines.Has a slight bend across the top where some enamel has chipped as shown in pictures however the sign is still in very sturdy condition. Please feel free to contact me with any questions. This item is in the category "Collectibles\Advertising\Merchandise & Memorabilia\Signs\Original\1930-69". The seller is "urbanindianajones" and is located in this country: US. This item can be shipped to United States.