You are looking at an original piece of nuclear development history. This sign is from the famous Temple Mountain Uranium mine located in Utah where uranium ore was discovered. Madame Curie visited this mine and it also helped develop nuclear weapons for the United State’s to win WW2. It measures 30 inches tall and 38. inches tall Vintage 1940’s Temple Mountain Uranium Mine Mining Tonnage Sign Madame Curie. Condition is "Used". Shipped with USPS First Class.