Synchronous mains electric clock of the self-starting type
1934
1934
1931
1931
1931
1933
1934
1934
2000-100 BCE
1932
1955; 1830
1932
1933
Before 1932
1934
1934
1932
1933
1990-96
1934
1931
1931
1933
1903 (original); 1982 (model)
1933
4000-2001 BCE
Before 1932
1934
1932-1933
1839 (original); circa 1988 (replica)
1801-1892 (prepared); 1946 (element replaced)
1931
1934
1830 (original); 1967 (model)
1933-1934
circa 1932
1932
circa 1934
1933
1953-4
1934
1934
1931
1933
1970-1900
1932
1934
1934
1931
1931
1933