Reason slot meter, c.1920.
1918-1922
1918-1922
1926
1921
1926
1927
1938
1938
1938
1935
1938
circa 1930
1918
1920
1936
1920-1929
1934
1929-1935
1937
1937
1938
1938
1932
1919
1920-1925
1917
circa 1938
1935
circa 1927
circa 1930
1920
1930
1917
1924
1925
1935
1928
1922
1927
1923
1924
1925
1921-1926
1924-1927
1922-1923
1922-1923
1922-1923
1922-1923
1920-1929
1920-1935
1920-1930