Ключевые слова: antique, architect, architecture, art, bow, calipers, circle, compass, concept, construction, contractor, curve, design, designer, divider, dividers, draw, drawing, education, engineer, engineering, equipment, geometry, graphic, instrument, mathematics, measure, measurement, metal, object, office, old, painting, plan, professional, project, retro, school, science, sketching, slide, stationery, study, technical, technology, tool, work,