Radio with Bakelite case
1940
1940
1942
1940
1942
2000-100 BCE
1938 and 1951
1940
1940
1942
1955; 1830
1940
1990-96
1940
1801-1892 (prepared); 1946 (element replaced)
1940
1940
1903 (original); 1982 (model)
1830 (original); 1967 (model)
circa 1940
4000-2001 BCE
1950-1920
1971-1900
1940
circa 1940
1942
circa 1940
circa 1940
1940
2000-1350
1942
1942
1972-3
1940
1942
1945-50
1990-95
1940
1940
1941
1940
30 CE
30 CE
1859; 1986
1940
3500-1000
1940
1942
1942
1930 (original); 1984 (model)
1941