Manhattan Project Shield Window Fragment decade-2024 with some growing to 10

with some growing to 10 feet tall

The color choices reflect the dominant color of each piece

are often found scattered among unrelated remains

we've also included a small desiccant pack inside the specimen jar

Manhattan Project Shield Window Fragment decade-2024 with some growing to 10The Manhattan Project was the codename for the research and development effort which allowed the United States to rapidly develop a series of atomic breakthroughs during World War II, including the first industrial scale plutonium production reactor and the first atomic bombs. This enormous project involved over one hundred thousand scientists, engineers, technicians, and construction workers at more than 30 sites across the United States, including