Early inventions...
SCIENTIFIC AMERICAN, New York, November 24, 1860 The front cover has "Christman's Improved Brick Elevator" with an accompanying article. Inside the issue is: "Lyman's Improved Protracting Trigonometer"; "Cook's Improved Veneer Cutter"; "Sutton's Improved Sleigh Coupling"; "Improved Skate and Ankle Brace"; and more articles, illustrations and advertisements.
Complete in sixteen pages, some some edge tears, otherwise in good condition. Never bound.
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SCIENTIFIC AMERICAN, New York, January 18, 1873 The front page has a large illustration "The Great American Brick Machine" with an accompanying article.
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