Operator
A trade periodical titled Operator, published in New York in 1874 and aimed at telegraph operators and the telegraph trade. Its pictures are wood-engraved catalogue views of telegraph instruments, including a nickel-plated sounder and key set, a battery-powered relay set, and a magneto call bell, shown as isolated objects against plain backgrounds. A designer might take their compact, mechanical look: stacked brass knobs, coil housings, and turned-wood or cast bases drawn with fine hatched shading.
