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Die Wollfarbstoffe des Jahres 1913 = b Wool colours 1913 (1913)

Bayer Company, Inc · New York : Bayer Company · leaf 42

An illustration from Die Wollfarbstoffe des Jahres 1913 = b Wool colours 1913, 1913, leaf 42 — SulfonsäureschwarzSulphon Acid BlackNoir Sulfone Cyanine N 2 B extra.

Dyes and dyeing

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