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Scientific American 1894-02-03
Photo sizes
S - small
(285 x 432)
M - medium
(392 x 594)
L - large
(499 x 756)
XL - extra large
(606 x 918)
Original
(650 x 984)
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Created on
Monday 9 November 2009
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956
Tags
communications
,
network
,
telecom
,
voice
Albums
General Magazines
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Science and Technology Magazines
/
Scientific American
Details of construction of the Bell telephone. Single wire circuit. Metallic circuit.
Source: Steve Kirch, collector, and creator of a great
website about SCIENTIFIC AMERICAN
in the past
Restoration by: magscanner
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