| Credit: | unknown photographer |
|---|---|
| Date: | 1862 |
| Negative Size: | stereo |
| Equipment: | caisson; cannon; handspike (wood); rope; sponge and rammer staff; sponge bucket; Wiard field carriage; Wiard rifle gun |
| Locations & Lines: | District of Columbia; Greenleaf’s Point DC; Potomac River; Washington DC; Washington Arsenal (Washington DC) |
| Military Units: | US Army |
| Sources: | Library of Congress; USAMHI – MOLLUS collection |
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