People and train on North Branch Potomac River bridge
1859-06
1859-06
circa 1895
circa 1895
circa 1895
1859
1830
circa 1830
1850
circa 1895
1859
1866-10-20
circa 1895
1797
1870
1852
1870-07-01
1913-09-14
circa 1857
1850-1860
circa 1900
1863
1899-02-13
circa 1949
circa 1900-1960
circa 1880
1854
1914-08-01
1914-08-01
circa 1883
circa 1900-1925
1905
circa 1861-1865
circa 1861-1865
circa 1804-1806
circa 1900
1886
1864
1947
1941-1974
1798-03-19
1948-07
1994
1912-12-20
1912-12-20
circa 1870
circa 1853-1856
1915-12-10
circa 1900
1904-06-14
1797-07-10
1804
1881
circa 1900
circa 1910
circa 1910s
circa 1860
1904-06-14
1872
circa 1883
circa 1810s