Hydron blue G and R, patented paste 20% and powder (1911)
Cassella Color Company · New York · leaf 26
. No. S. 10% Hydron Blue R pat.Paste 20%. paste 20%. Noi. 9 and 10. HYDRON BLUE PAT. G AND R ON MERCERISED COTTON YARN.Dyeing directions on page 5. \,, 9. 2 % Hydron Blue G pat. No. 10. 6% Hydron Blue G pat. Paste 20%. Paste 20%. 1% Hydron Blue R pat. Paste 20%. The quantities of dyestuff are to be… … HYDRON BLUE R ON COTTON YARN
Dyes and dyeing
Internet Archive · Clark Art Institute Library · Public Domain Mark 1.0. Free to use for anything.