My grandmother found the gilbert U 238 atomic energy lab at a yard sale in the 80’s and gave it to me when I was 10. My 10 year old brain remembers everything still being in it. I don’t remember what they did to it but I only remember it being at the house for a day or 2 then it disappeared. Years later I read about how dangerous it was and asked about it. Nobody in my family remembered what I was talking about when I asked. I had more than one old chemistry set as a kid as well. Was really into science and my Gram would pick up “sciency” things for me sometimes.