Medieval town of Warsaw on post stamp

Keywords:

collection, stamp, picture, communications, postage, mail, post, postmark, label, zigzag, canceled, mark, philately, illustration, correspondence, retro, vintage, Poland, building, ancient, roof, tower, historic, cavalry, stone, strength, stronghold, castle, chivalry, medieval, military, historical, architecture, symbol, city, town, war, wall, bridge, nobility, fort, fortified, exterior, past, grunge, palace, old, hussar, culture,