Ключевые слова: 4, 60, 1964, antique, circa, collection, conference, congress, correspondence, design, envelope, hammer, heritage, historic, hobby, issue, letter, mail, national, old, party, people, philatelic, philately, poland, polish, political parties, post, postage, postage stamp image, postal, postmark, red, retro, ribbon, stamp, tool, united workers party, vintage, white,