
Brennan's Gyroscopic Mono-rail Car
1907
1907
1960
1936
1879
1967
1850-1897
1999
1899-1919
1950-1952
1915-1925
1955; 1830
circa 1964
1880-1940
1870-1881
1830-1900
1844
1969
1904
1951
About 1890
1892-1920
1903
1927
1951
1915
1956
1959
1959
1980
1900-1980
1880-1920
1961
1962-1967
1910-1936
1989
1963
1937-1960
1879
1980-1989
1880-1920
1878
1965-1971
1936
1959
1858
1872-1880
1855
1900-1910
1900-1950
1848-1852