| Number | Name | Date | Kind |
|---|---|---|---|
| D262424 | Sommers et al. | Dec 1981 | S |
| D430953 | Freeman | Sep 2000 | S |
| Entry |
|---|
| Modley, Rudolf. Handbook of Pictorial Symbols 3,250 Examples from International Sources. New York: Dover Publications, Inc., 1976, p. 108, bottom row: Danger Radiation symbol.* |
| Hong Kong Enterprise Oct. 1999, p. 688: soap at bottom of lower left frame. |