#iron_gall_ink
Iron gall ink
Ink made from iron salts and tannic acids from vegetable sources
Iron gall ink is a purple-black or brown-black ink made from iron salts and tannic acids from vegetable sources. It was the standard ink formulation used in Europe for the 1400-year period between the 5th and 19th centuries, remained in widespread use well into the 20th century, and is still sold today.
Mon 16th
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