substanceCoal Oil ThinnedColors & materialsA named craft material / finish lemma (Coal Oil Thinned) drawn as an exact public-domain workshop phrase.Coal Oil Thinned is historically related to Oil.french-polishing seats orphan coal-oil-thinned beside oil as a first craft peer — object speech, not a text-container or tradition dump.from Richard Bitmead · French Polishing and Enamelling: A Practical Work of Instruction, PD Gutenberg #17935historically related to · sourced · documentedsourcesFrench Polishing and Enamelling: A Practical Work of Instruction · Richard BitmeadBitmead, French Polishing and Enamelling (PD Gutenberg ed.).