Ключевые слова: 2, 20s, 60s, airbrush, apprentice, banister, brush, caucasian, demonstrate, drill, engineer, equipment, factory, handrail, horizontal, indoors, job, machine, machinery, manual, manufacturing, men, milling, observation, overalls, painter, people, person, profession, professional, safety, spray, teacher, teaching, trail, training, working, workman, workshop,