substanceSoap ButColors & materialsA named craft material / finish lemma (Soap But) drawn as an exact public-domain workshop phrase.Soap But is historically related to Oil.coach-building seats orphan soap-but beside oil as a first craft peer — object speech, not a text-container or tradition dump.from James W. Burgess · A Practical Treatise on Coach-Building, PD Gutenberg #72016historically related to · sourced · documentedsourcesA Practical Treatise on Coach-Building · James W. BurgessJames W. Burgess, A Practical Treatise on Coach-Building (PD Gutenberg ed.).