
Brennan's Gyroscopic Mono-rail Car
1907
1907
1911
1839 (original); circa 1988 (replica)
1905
1705-1737
c.1912
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1990-96
1904
1910
1955; 1830
1914
1904-1914
1906
1906
1910
1910
1906
1934
1907
2000-100 BCE
1914
1914
1872 (original); 1909 (model)
1910
1904
1908
1909
circa 1905
1912
c.1912
1910
1912
1905
circa 1910
1914
1914
1914
1913
1904
1907
1910
1772 (original); 1919 (model)
circa 1904-1914
1908
1913
1925; 1862
1910
1801-1892 (prepared); 1946 (element replaced)