Reason slot meter, c.1920.
1918-1922
1918-1922
1921
1918
1920
1919
1917
1920
1917
1922
1923
1922-1923
1922-1923
1922-1923
1922-1923
1923
circa 1920
1934
1918
2000-100 BCE
1917-1918
circa 1920
1955; 1830
1918-1920
1918
1921
1918
1923
circa 1920
1920
1920
1919
1990-96
circa 1917
1920
1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1920-1922
1921
1920
1934
1922-1923
1922-1923
1923
circa 1919
1917
1922