Public domain
Lufkin, Texas. Southland paper mill. Log on the knotting machine. After the bark has been removed, knots are cut out of pulp logs which reduces the pitch content of the pulp
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineLufkin, Texas. Southland paper mill. Log on the knotting machine. After the bark has been removed, knots are cut out of pulp logs which reduces the pitch content of the pulp. 1943-01-01. Vachon, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.