Inside Out LibraryApplication of the benzidine colours in all branches of printing (1898)Farbenfabriken Bayer Aktiengesellschaft · Elberfeld · leaf 70Heliotrope B B. … Dyed with: 0*5 °/0 Brilliant Geranine B;Printed with: zinc white.Textile fabrics · Dyes and dyeingInternet Archive · Clark Art Institute Library · Public Domain Mark 1.0. Free to use for anything.More pictures from Application of the benzidine colours in all branches of printingMore like this