Hydron blue G and R, patented paste 20% and powder (1911)
Cassella Color Company · New York · leaf 28
15 16 17 18 19 … DYEINGS OF HYDRON BLUE aftertreated, or topped with Indigo. Nos. 20—25 AFTERTREATED WITH PERBORATE OF SODA.Dyed according to directions on pages 3 and 4, and aftertreated as given on page 5. No. 20. 5% Hydron Blue G pat. No. 21. 8 % Hydron Blue G pat. Paste 20%. Paste 20%. No. 22. 4% Hydron Blue G…
Dyes and dyeing
Internet Archive · Clark Art Institute Library · Public Domain Mark 1.0. Free to use for anything.
