Les colorants anthralan
A 1930 French-language dye sample book, Les colorants anthralan, issued at Frankfurt am Main by the I.G. Farbenindustrie chemical concern for dyers and textile trade buyers. The pictures are plain rows of dyed fabric swatches, each a stacked strip of colour, with the dye shades shown as woven samples a designer could match against palettes for cloth and print.
