Reason slot meter, c.1920.
1918-1922
1918-1922
1926
1921
1926
1927
1918
1920
1919
1920-1925
1917
circa 1927
1920
1917
1924
1925
1922
1927
1923
1924
1925
1921-1926
1924-1927
1922-1923
1922-1923
1922-1923
1922-1923
1927
1923
circa 1920
1934
1918
1926
2000-100 BCE
1917-1918
1924
circa 1920
1955; 1830
1918-1920
1918
1921
1918
1925-1927
1923
1925
1920-1925
1927
circa 1920
1920
circa 1927
1920