Early on in the second episode, a prostitute offers Rudolf and his friends two bottles of Dom Perignon champagne, with the familiar bottle and label --"Gentlemen, special delivery just in from France" . Although it purports to be around 1886 (Wilhelm mentions "It's 1866 all over again", to which Johanne responds "It's been twenty years Wilhelm, don't you have anything else to brag about?"), Dom Perignon's first vintage was in 1921.