This striking 2.50 schilling commemorative stamp, issued by the Republic of Austria in 1975, celebrates the 11th European Municipal Congress, a gathering promoting cooperation among European cities and local governments. Designed by A. Pilch, the stamp features the Austrian federal eagle—symbol of national sovereignty—superimposed on a stained-glass–style medallion encircled by twelve golden stars, representing European unity. The rich blue and gold palette evokes both Austria’s civic heritage and the spirit of continental partnership during the mid-1970s.