| Navy | The US Navy |
| Type | Minesweeper |
| Class | Accentor |
| Pennant | AMc-91 |
| Built by | F. L. Fulton Shipyard (Antioch, California, U.S.A.) |
| Ordered | |
| Laid down | 6 Sep 1941 |
| Launched | 15 Jan 1942 |
| Commissioned | 14 Apr 1942 |
| End service | 10 Dec 1945 |
| Loss position | |
| History | Decommissioned on 10 December 1945 |
We don't have any commands listed for USS Observer (AMc-91)
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