Scientific American, Vol. 33, No. 20 (1875)
Scientific American volume 33, number 20, a weekly American periodical of 1875 that printed patent news and mechanical inventions for engineers, mechanics and general readers. Its pictures are line engravings of machines and devices, including an early locomotive, a sawing and grooving machine, a clock movement and a tool drawing; a designer could draw on their crisp hatching and precise mechanical detail for industrial or heritage-themed work.
