The Lone Ranger Atomic Bomb Ring: A 1947 Kix Cereal Sensation
https://selfreliancecentral.com/2025/07/10/the-lone-ranger-atomic-bomb-ring-a-1947-kix-cereal-sensation/
Polonium 210 is the main isotope on tobacco that gave heavy smokers 5 REM/yr from unfiltered cigarettes.