Hydron blue G and R : patented : paste 20% and powder (1911)
Cassella Color Company · New York : Cassella Color Co. · leaf 63
MANUFACTURE LYONNAISE DE MATIERES COLORANTES, LYONS. Works "La Mouche”. RUSSIAN ANILINE COLOUR WORKS LEOPOLD CASSELLA & Co., RIGA. … 12.00 2^ Works at Riga. HY CFKTER
Dyes and dyeing · Color in the textile industries
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
