The W9 was an American nuclear artillery shell fired from a special 11 inch howitzer. It was produced starting in 1952 and all were retired by 1957.
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/BAjSBazdpqZ__zP54tH2CQ== | 5.88129e-14 |
| dbr:W9_(nuclear_warhead) | 5.88129e-14 |