Reason slot meter, c.1920.
1918-1922
1918-1922
1918
1920
1917
1924
1925
1925
1924
1919
1921
1934
1923
1920
1918
1920-1925
1917
1922-1923
1922-1923
1922-1923
1922-1923
circa 1920
1921
1920-1925
2000-100 BCE
1917-1918
1924
1923
1925
circa 1920
1922
1955; 1830
1918-1920
1918
1918
1923
1920
1920
1990-96
1920
1920
1930 (replica); 1834 (original)
1923
1922-1923
circa 1920
1925
1922
1934
1922-1924
1920-1922
1922-1923