Demonstration model of a differential gear
1890-1905
1890-1905
1890
1888
1868
circa 1900
1900-1910
1862-1888
1888
1868
1888
1888
circa 1889
1868
1840s-1900
1840s-1900
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868
1868