1925
1922
1920
1920-1925
1922-1923
circa 1920
1921
2000-100 BCE
1924
1923
1934
1955; 1830
1990-96
1986 (replica); 1501-1600 (original)
1801-1892 (prepared); 1946 (element replaced)
1830 (original); 1967 (model)
1922-1925
1922-1924
1920-1922