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Hydron blue G and R : patented : paste 20% and powder (1911)

Cassella Color Company · New York : Cassella Color Co. · leaf 53

An illustration from Hydron blue G and R : patented : paste 20% and powder, 1911, leaf 53
FABRICS BLEACHED IN THE PIECE. 75 … 76 XIV

Dyes and dyeing · Color in the textile industries

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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