
Volume 1 No. 1 of "Television" monthly magazine, 1928
1928
1928
1924-1927
1830 (original); 1967 (model)
1839 (original); circa 1988 (replica)
1952-3
1928
1925-1928
1926
1955; 1830
1924
1926
1923
1928
1925-1927
1924
1927
1925
1928
1927
1926
1925
1923
1924-1927
1934
2000-100 BCE
before 1928
1925
1927
1924
1923
1927
1924
circa 1927
1925
1990-96
1926
1926
1925
1926-1928
1927
1801-1892 (prepared); 1946 (element replaced)
1923
1924
1923
1923
1923
1923
1934
1925
1928