Bistre
Bistre (or bister) is a pigment made from soot. Historically, beechwood was burned to produce the soot, which was boiled and diluted with water.
Bistre (or bister) is a pigment made from soot. Historically, beechwood was burned to produce the soot, which was boiled and diluted with water.
Bistre (or bister) is a pigment made from soot. Historically, beechwood was burned to produce the soot, which was boiled and diluted with water.
Source: Wikipedia "Bistre" · CC BY-SA 4.0
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