Ключевые слова: activity, art product, ballpoint pen, blue, business, calligraphy, contract, correspondence, creativity, design, document, drawing, education, equipment, felt tip pen, fountain pen, graphic, handwriting, illustration, ink, isolated, letter, metal, nib, office, paper, pen, pencil, scribble, sharp, shiny, sign, signature, symbol, text, white, work tool, writing instrument,