
Brennan's Gyroscopic Mono-rail Car
1907
1907
c.1912
1830 (original); 1967 (model)
1973-1983
1989
1975
1969
1975-1985
1997
circa 1955
2000
1997
1910
1950
1955-1965
1922
1916-1996
1900
1960
1950
1965
c.1912
1957
1957
1841
1955
1975
1957
1907-1917
1907-1917
1907-1917
1884
1932-1942
1812
1989-1999
1867-1868
1910-1920