Scientific American, Vol. 3, No. 9 (August 1860)
A weekly issue of Scientific American from August 1860, published in New York for inventors, mechanics, and patent-holders reporting new machines and claims. The wood engravings are small patent diagrams in line and hatching: sectioned faucets, gear trains and wheels, a still with condenser coils, all lettered with reference keys usable as clip art, spot ornament, or technical texture.








