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Pneumatic message system...
Pneumatic message system...
Item # 613211
March 24, 1877
SCIENTIFIC AMERICAN, New York, March 24, 1877 The front page features a large illustration "Pneumatic Transmission in New York City" with an accompanying article and more illustrations inside. Inside the issue is "New Experiments in Mechanical Flight" with illustrations; "Houyoux' Rotary Pump"; and more illustrations, articles and advertisements.
Complete in 16 pages and in nice condition.
Category: Post-Civil War