Ben-Day Dots

The Ben Day process is a method in printing that creates shades of grey or different colours by using intricate ink patterns on paper.

A low-cost mechanical printing technique, developed in the late 19th century and named after its creator, illustrator and printer Benjamin Henry Day, Jr., employs small coloured dots (usually cyan, magenta, yellow, and black) placed at different intervals and blended to produce shading and various colours in images.