substanceCase ShellacColors & materialsA named craft material / finish lemma (Case Shellac) drawn as an exact public-domain workshop phrase.Case Shellac is historically related to Oil.french-polishing seats orphan case-shellac 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.).