Ключевые слова: 7th, activist, aged, america, antique, argentina, argentinean, canceled, collection, commemorative, correspondence, domingo, domingo faustino sarmiento, faustino, hobby, intellectual, isolated, issue, letter, macro, mail, male, man, office, old, paper, perforated, philately, post, postage, postal, postmark, president, retro, sarmiento, shipping, south, stamp, statesman, used, vintage, writer,