Ключевые слова: 1, 1 may, background, badge, banner, calligraphic, card, celebration, day, design, emblem, employers, fight, fist, freedom, graphic, greeting, hand, happy, holding, holiday, icon, international, label, labor, labour, labour day, man, may, mayday, national, old, party, patriot, poster, protest, punch, red, revolution, rights, socialism, strong, style, text, typography, union, victory, vintage, worker,