Visitantes de la cafetería de Berlín, o "Kaffeeklappen", grabado en madera, publicado en 1870 - Ilustración de stock

Berlin coffee shop visitors, or "Kaffeeklappen". Since the middle of the 19th century, simple eateries for workers in Germany, in which no alcoholic beverages were served, have been referred to as the Volkskaffeehalle or, more commonly, the “ Kaffeeklappe (coffee flap)”. Wood engraving, published in 1870.