Synchronous mains electric clock of the self-starting type
1934
1934
1938
1938
1945
1946
circa 1938
1946
1934-1935
1948
1946
1943
1948
1947
1935
1940
1940
1937
1937
1950
1938
1938
1950
1945
circa 1950
1942
1936
1946
1940-1945
1949
1935-1945
1935
1935
1938
1947
1940
1938
1938
1935
1938
1940-1949
circa 1950
1936
1935
1950
1948
1950
1934
1939-1945
1943
1940