USS Helena (SSN-725) badge, submariner dolphins insignia; ship's 30th year; [Navy]
| Image2 | |
| City | Groton |
| State | CT |
| Subject | Military |
| Description | USS Helena (SSN-725) badge, submariner dolphins insignia; ship's 30th year; [Navy] |
| Year | 2017 |
| Month | 7 |
| Day | 11 |
| Color | black |
| Notes |