Immedial colours on cotton yarn
A 1900 trade booklet published in New York by the Cassella Color Company, showing its Immedial dye colours on cotton yarn for textile dyers and buyers. The pictures are black-and-white photographs of the company's dye works along a river with tall chimneys and rows of buildings, plus a strip of dyed yarn swatches in olive, brown and grey shades that a designer could use as a reference for muted earth tones.
