
Replica of Bell's 1876 centennial telephone transmitter, 1959
1959
1959
1830 (original); 1967 (model)
circa 1956-1959
1955
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1957
circa 1955
1957
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1957
1957
1958
1956
1955
1956
1959
1959
1956
1955
1956
1955; 1830
1955
1955
1959
circa 1955
1957
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1956
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1959
1956
1957
1959
1956
1959
1957
1957
1958
2000-100 BCE
1955
1955
1955
1957