
Model Great Northern Railway Centre-pivot Semaphore Signal
c.1912
c.1912
1934
1913
1949
1951
1925-1926
1901-1920
1920-1950
1920-1950
1925-1935
1890-1930
1948-1953
circa 1900-circa 1948
1948-1950
1950
1888
before 1889
1886
1890 - 1900
1938
1920
1947
1938
1923-1948
1938
1910-1920
1935
1938
1940
1901
1928
1910
1950
1922
1900
1932
1950
1914
1895
1937
1931
1954
1951
1946
1927
1906
1937
1954
1930
circa 1930