
Replica of Bell's 1876 centennial telephone transmitter, 1959
1959
1959
1957
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1958
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1958
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1959
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1959
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1958
2000-100 BCE
1957
1958
1958
1958
1903 (original); 1982 (model)
1957
1958
1957
1957
1990-96
1830 (original); 1967 (model)
1959
1839 (original); circa 1988 (replica)
4000-2001 BCE
1959
1958
1959
1959
1958
1959
1957
1958
1957
1957