Ключевые слова: 20s, 50s, agricole, apprentice, beginnings, caucasian, construction, engineering, equipment, female, finger, glasses, horizontal, learning, machine, machinery, machinist, male, man, manufacturing, mill, milling, operating, operator, people, power, professional, regulate, selective, skill, teaching, trail, training, twenties, view, woman, women, worker, working, workshop,