This glass was used at the Hanford Washington Manhatten Project location. One of the biggest and most undercover operations the United States Military has ever done. It started during WWII in the late and went on through the cold war era.
The world’s first industrial-scale nuclear reactor was built in Hanford, Washington in 1943 during World War II and served as part of the Manhattan Project, developing the atomic bomb. One of three plutonium production reactors built in total secrecy at Hanford during World War II, B Reactor produced plutonium for the Trinity test at Alamagordo, New Mexico and for the atomic bomb that was dropped on Nagasaki, Japan in 1945.
This photo shows the construction of the T Plant -- the world's first large-scale plutonium separation facility -- in Hanford, Washington. The T Plant is one of the facilities the Department plans to open as part of the Manhattan Project National Park.