Ключевые слова: abstract, age, ancient, backdrop, background, circle, clockwork, concept, construction, design, details, drawing, elements, engine, engineering, equipment, gear, graphics, idea, illustration, industrial, industry, inside, mechanical, mechanism, old, part, pattern, plan, print, professional, retro, rotate, round, seamless, sketch, steam, structure, technical, technology, texture, vintage, wheel, white, work,