Bridge at Little Falls of the Potomac River, above Georgetown
1797
1797
1859-06
circa 1880
circa 1900
circa 1861-1865
circa 1861-1865
circa 1804-1806
undated
1804
1798-03-19
undated
circa 1900
circa 1900
1895
circa 1850
circa 1850
circa 1845
circa 1850
circa 1850
circa 1850
circa 1850
circa 1850
circa 1850
undated
circa 1860
circa 1850
circa 1860
circa 1860
undated
1856-06-13
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated
undated