Ключевые слова: african, airmail, ali, america, american, artwork, athlete, background, black, boxer, celebrity, cents, champ, country, culture, famous, fighter, graphic, hundred, icon, illustration, image, isolated, letter, mail, male, man, muhammad, muslim, old, paper, people, person, philatelic, photo, photograph, postage, postal, poster, printed, republic, script, seal, stamp, states, thousand, united, usa, value,