Barrel organ, perforated disks made of cardboard and metal with perforated pieces of music, O Tannenbaum on the left, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ builder, workshop, man blowing into sound post, checking tones with his mouth, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ builder, workshop, man blowing into sound post, checking tones with his mouth, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ builder, workshop, man checks spring wires of sound post on body, empty case on the left, perforated disks in front, open Amorette on the right, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Metal springs on wooden valves are tested, barrel organ manufacture, Grassau, Upper Bavaria, Bavaria, Germany, Europe