substanceGround StiffColors & materialsA named craft material / finish lemma (Ground Stiff) drawn as an exact public-domain workshop phrase.Ground Stiff is historically related to Workshop.carriage-painting seats orphan ground-stiff beside workshop as a first craft peer — object speech, not a text-container or tradition dump.from M. C. Hillick · Practical Carriage and Wagon Painting, PD Gutenberg #48173historically related to · sourced · documentedsourcesPractical Carriage and Wagon Painting · M. C. HillickM. C. Hillick, Practical Carriage and Wagon Painting (PD Gutenberg ed.).