Manufacturer and builder 3, 1873
We would advise you to first soak your material in the solution of copperas, or perhaps, better, in bichromate of potash, wring well out and dry; then place in the extract of logwood. You may add alum if you find it to be beneficial.
Coloriasto on väriaiheisten tekstien (ja kuvien) verkkoarkisto
(Archive for colour themed articles and images)
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