The Foss Brewery won a gold medal for its beer at the Paris world's fair in 1900. The company was the leading brewery in Christiania when Haakon VII became king in 1905. Haakon followed the Danish tradition by issuing royal warrants of appointment; the Foss Brewery was selected for royal appointment to supply beer, for which it received an exclusive right. With this, the brewery obtained the prestigious right to print the Norwegian royal crown on its labels and to add the term "eneberettiget" 'exclusive privilege' to its brands Bayersk Øl and Pilsener Øl.