The next sentence: Dos entradas, por favor.
You collect your tickets at the theatre box office and pay into a tin – a “Dose” – with a slot in the top; at the bottom there are two snakes (dos). On the tin there is a picture of a duck (“Ente”) sitting on a tram eating wet dates – “nass” and “Datteln” (entradas). Then the tram rides through a gate (por favor).