Direct colours on viscose
A trade dye sample book from Sandoz Chemical Works of New York, issued around 1900 for textile dyers and manufacturers working with viscose rayon. The pictures are rows of skeins dyed in graded strengths, labelled with percentages and arranged in swatch cards, with one page carrying the firm's name in capitals. A designer could draw on the rich, carefully graded colour ranges of purples, reds, browns and blues, and on the simple tabular layout of the swatch cards.
