Ключевые слова: 20s, 50s, apprentice, apprenticeship, carpenter, caucasian, equipment, factory, fifties, front, glasses, goggles, horizontal, learning, machine, machinery, machinist, male, malpbarjeanlouis280317, malpcoramelie280317, malpcotnathy280317, malpelijimmy280317, manufacturing, men, occupation, operating, operator, people, plane, safety, skill, supervising, supervisor, teaching, trainee, training, twenties, two, view, women, wood, worker, working, workshop,