SCIENTIFIC AMERICAN, New York, March 16, 1872  This 16 page issue is in nice condition and contains illustrations of the latest inventions of the day including: the "COLT ARMORY TESTING MACHINE",  "Extension Ladder", "Firearm Projectile", "Water Wheel Governor", "Saw Filing Machine". Additional illustrations, articles and advertising are within.

This is complete in 16 pages with a slight irregular left spine and some small edge tears in the right margin, otherwise in good condition.