Reason slot meter, c.1920.
1918-1922
1918-1922
1918
1920
1917
1916
1919
1921
1934
1920
1918
1917
circa 1920
1921
2000-100 BCE
1917-1918
circa 1920
1922
1955; 1830
1918-1920
1918
1918
1916-1917
1920
1920
1990-96
1920
1920
1930 (replica); 1834 (original)
1916-1918
circa 1920
1705-1737
1922
1934
1920-1922
1921
circa 1917
1918
1839 (original); circa 1988 (replica)
1801-1892 (prepared); 1946 (element replaced)
circa 1919
1917
1916
1922
1919
1903 (original); 1982 (model)
1772 (original); 1919 (model)
4000-2001 BCE
1918-1920
1917-1918
1830 (original); 1967 (model)