Ключевые слова: abstract, antique, background, blue, brass, bronze, business, clock, clockwork, cog, cogs, cogwheel, communication, concept, connection, cooperation, copper, design, detail, equipment, gear, gearwheel, grunge, idea, industrial, industry, machine, machinery, macro, mechanical, mechanism, metal, metallic, monochrome, motion, old, precision, retro, steampunk, steel, strategy, symbol, teamwork, technical, technology, transmission, used, vintage, wheel, worn,