Brass worksplate no 517, Manning Wardle & Co
1875
1875
1920
1900
1920
1884
circa 1952
1941
1882
1865-1883
1899
1908
1911
1898
1883
1876
1906
1925
1883
1891
1898
1878
1934
1906
1851
1940-1950
1917
1903
1905
1917
1961
1919
1900
1960
1925
1930
1880
1876
1912
1890
1878
1950
1891
1920
1878