Ключевые слова: 1972, approval, art, beautiful, beauty, biology, bloom, blooming, botanic, botanical, botany, canceled, collection, color, communications, composition, cultivated, decorative, flavum, flora, floral, flower, garden, green, history, label, leaf, mail, medicinal, nature, old, paper, perforated, philately, picture, plant, post, postage, postmark, retro, russia, soviet, stamp, ussr, vintage, yellow, zigzag,