Ключевые слова: 4th, aged, america, american, celebrate, collection, commemorative, communication, correspondence, eagle, famous, flag, fourth, government, history, holiday, immigration, independence, july, mail, memorial, nation, national, old, oldfashioned, paper, patriot, patriotic, patriotism, philately, post, postage, postal, postmark, red, retro, send, stain, stamp, star, stripes, symbol, symbolic, united, unity, usa, used, vintage, white house,