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Application of the benzidine colours in all branches of printing (1898)
Farbenfabriken Bayer Aktiengesellschaft · Elberfeld · leaf 68
Dyed with: 1/„ Benzo Fast Black:discharged with: 8% Bhodamine 6G. … Dyed with: 2% Benzo Brown MB.Textile fabrics · Dyes and dyeing
Internet Archive · Clark Art Institute Library · Public Domain Mark 1.0. Free to use for anything.
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