SCIENTIFIC AMERICAN, New York, July 30, 1881  The front cover features "Ellithorp's Boot and Shoe Lasting Machine" with an accompanying article. Inside the issue is: "Adjustable Gun Stock"; "The Induction Balance used as a Bullet Finder"; "Maiche's Battery"; "Telescopic Views of the Great Comet of 1881"; "Trevor * Co's Slotting Machine"; "Home of the American Osprey"; and more illustrations, articles and advertisements.
Complete in sixteen pages with some lite scattered foxing, otherwise is in very good condition.