Bassie & Adriaan have arrived in the German town of Linz (Linz am Rhein) and all see different barrel organs. There appears to be a barrel organ conference in Linz. Could there perhaps be a barrel organ called Lamberti and that would be the package?
In the background you can see the Löwer - Apotheke at Mittelstraße 1.
The scene can be seen twice on screen, once as a shot and once when Bassie & Adriaan are walking in the street.