Pressed charcoal sticks that have been soaked in linseed or olive oil. Oiled charcoal has been identified in 16th century Renaissance drawings (Stratis 1999). The sticks produce a deep black line in which the oil permanently adheres the charcoal to the paper. However, the oil can migrate into the paper usually producing a halo around the line that can darken with age. In some papers, the oil can also be seen on the verso.
Synonyms and Related Terms
H.Stratis, "Oiled Charcoal" in Media and Techniques of Works of Art on Paper, New York University Conservation Center of the Institute of Fine Arts, New York, 1999.