Ключевые слова: 1872, 1950, 1964, aged, anniversary, antique, asia, aurobindo, bengali, birth, black, briefmarke, canceled, closeup, ghose, guru, hindi, hinduism, historic, hobby, india, indian, issue, letter, macro, mail, nationalist, old, philatelic, philatelism, philately, poet, portrait, post, postage, postal, religion, religious, republic, retro, sello, series, sri, stamp, teacher, timbre, used, vintage, yoga, yogi,