Colorants acides et basiques sur filés de laine. I
A dye-maker's sample book of 1890 from Farbenfabriken vorm. Friedrich Bayer & Co of Leverkusen near Cologne, issued in French for dyers and textile trades. Its pictures are rows of dyed wool skeins laid in paired vertical strips, shading from black and navy through greens and blues, with numbered swatches. A designer could draw on the tight banded rhythm and the graded palette of deep dark tones.
