| Credit: | unknown photographer |
|---|---|
| Date: | 1861-1865 |
| Negative Size: | 6.5 in. x 8.5 in. |
| Locations & Lines: | Washington DC; District of Columbia |
| Military Units: | US Navy |
| Structures & Establishments: | Naval Observatory (Washington DC) |
| Sources: | Library of Congress; National Archives; USAMHI – MOLLUS collection |
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