Manhattan Project Shield Window Fragment decade-2024 They are also coated in

They are also coated in a layer of acrylic enamel

As a cost-saving measure

including Wyoming’s state fossil: Knightia eocaena

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

Manhattan Project Shield Window Fragment decade-2024 They are also coated inThe 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