Beizen- und Nuancierungsfarbstoffe auf Stückware = Mordant colours on piece goods and suitable shading colours = Colorants pour mordants et à nuancer sur tissu de laine
A trilingual German, English and French dye sample book issued in 1890 by the Farbenfabriken vorm. Friedrich Bayer & Co at Leverkusen near Cologne, for textile dyers working with wool piece goods. Its pictures are strips of numbered swatches, each a dark rectangle of dyed cloth labelled with percentage quantities of dye, arranged in columns down the page so a designer can compare how small changes in strength shift the shade from black through navy, plum and brown.
