Telescope by Galileo (replica)
1610; 1923
1610; 1923
1929
1923
1834-1836
1923
1926
1928
1925-1930
1839 (original); circa 1988 (replica)
1930 (replica); 1834 (original)
circa 1925
1923
1923-07
1925-1926
1925
1927-1928
1924
1927
1990-96
1926
1934
1926
1927
1929
1924-1927
1922-1924
1923
1930 (replica); 1834 (original)
1927-30
1930
4000-2001 BCE
1930
1925
1923
2000-100 BCE
1922-1925
1927
1928
1923
1925
1934
circa 1923
1926
1925-1930
1930
1930
1925-1930
1923
1925-1928
1922