One pair of screw wheels in gear
circa 1883
circa 1883
1888
1890
circa 1883
1857
1913
1890
circa 1890
circa 1883
1888
circa 1890
1888
1857
1913
1913
circa 1948
circa 1889
1868
circa 1883
circa 1902
1868
circa 1954
1876
1883
1868
1868
1868
circa 1883
1888
circa 1884
Unknown
1908
1868