Ключевые слова: agriculture, ancient, antique, background, brown, closeup, cog, engineering, europe, gear, gears, gearwheel, gerar, heavy, historical, history, industry, machine, machinery, mechanism, mill, nobody, obsolete, old, pinion, retro, rotate, rotation, round, rusty, shafts, shift, sprocket, spur, tooth, vintage, weathered, wheel, wood, wooden,