Continuity mistake: When the Hof Brau is shown, the door is white and opens outwards, and no shrubbery. When Le Beau comes in, the door is completely different, opens inwards, and has a trellis and shrubbery by it.
Continuity mistake: Burkhalter and Hans Spear are seated at the table in Klink's office and Burkhalter pours brandy for himself and Spear. After the camera goes through several quick cuts, you see the shot glasses empty without having been moved.
Answer: It's a comedy, not a documentary.
stiiggy
Perhaps it was counterfeit. There are numerous episodes where they deal in counterfeit monies.