Synchronous mains electric clock of the self-starting type
1934
1934
circa 1930
1935
circa 1930
1930
1931
1931
1931
1935
1930
1935
1929-1935
1933
1935
circa 1930
1934
1934
1935
1935
1934-1935
1935
1934
2000-100 BCE
1929-1935
1930-1931
1935
1932
1955; 1830
1932
1933
Before 1932
1932
1934
1930-1935
1933
1990-96
1935
1935
1930 (replica); 1834 (original)
1934
circa 1929
1929
1931
1929-1935
1930
1934
1932-1933
1935
1935
1839 (original); circa 1988 (replica)