Early hearing aid...
Item # 631532
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SCIENTIFIC AMERICAN, New York, January 30, 1886 The front page of the issue has "The New York Cable Railway" with an accompanying illustrations. Inside the issue is: "The Micro-Audiphone" which was an early hearing aid; "Combined Milling and Slotting Machine"; and more articles, illustrations and advertisements.
Complete in sixteen pages, unbound, in nice condition.
Complete in sixteen pages, unbound, in nice condition.
Category: Post-Civil War
No Longer Available
100% Authentic: Original printing, never a reproduction.