A mid-century tin sign, an advertisement for Duquesne Pilsner Beer. The sign presents a young man raising a mug of beer and insctiption Enjoy a Duke, Duquesne, The Prince of Pilseners, Cold To Go. The Duquesne Brewing Company was a major brewery in Pittsburgh, Pennsylvania, that functioned from 1899 until 1972. Collectible Breweriana, Historical Americana, Tin Signs.