Group of cyclists on polish post stamp

Keywords:

canceled, collection, stamp, picture, communications, postage, mail, post, postmark, letter, mark, philately, vintage, retro, label, old, illustration, Poland, 1968, color, brown, image, acting, people, action, activity, active, history, race, group, cyclist, bicycle, bicycling, cycle, bike, wheel, muscle, muscular, olympics, Olympic, game, man, superiority, strength, championship, sport, sportsman, competition,