Hydron blue G and R, patented paste 20% and powder (1911)
Cassella Color Company · New York · leaf 28
%. No. 16. 5 % Hydron Blue G pat. Paste 20%.5 % Hydron Blue R pat. Paste 20%. No. 17. 5 % Hydron Blue G pat. Paste 20%.7 % Hydron Blue R pat. Paste 20%. No. 18. 4 % Hydron Blue G pat. Paste 20%.9 % Hydron Blue R pat. Paste 20%. No. 19. 14 % Hydron Blue R pat. Paste 20%. The quantities of dyestuff… … 14
Dyes and dyeing
Internet Archive · Clark Art Institute Library · Public Domain Mark 1.0. Free to use for anything.
