Scientific American, Vol. 21, No. 24 (1869)
A weekly American periodical of 1869 devoted to science, invention and engineering, written for a general readership of inventors, mechanics and industrial workers. Its engravings show the period's building, rail and flying-machine projects in close, detailed black-and-white line work. A designer could draw on the dense cross-hatched steel framing and the crisp ornamental station architecture as models for industrial linework.
