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Dolbear's new telephonic system...
Item # 636765
June 18, 1881
SCIENTIFIC AMERICAN, New York, June 18, 1881 The front cover of the issue is entitled "Professor A. E. Dolbear's New Telephonic System" which is comprised of several illustrations. Within the issue is "Feast of Strange Fish"; "Photographing the Vibrations of the Voice" and many more articles and advertisements.
Sixteen pages, minor loss at the blank lower margin, nice condition.
Category: Post-Civil War