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, finished organ is inserted into the case, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ, proper function of bellows is checked with driving crank, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ, comb for sound pickup on the finished organ casing, pin circle for perforated disk, crank guide over sound pickups, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ, proper function of bellows is checked with driving crank, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ, worm gear, wooden crank handle, wooden valves, wooden comb for sound pickup, 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, hand bends spring wires made of V2A steel into wooden valves, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ, bellows part, plywood board with vents, covered with leather strip, valve, 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

Barrel organ, Amabile, perforated metal disk, Grassau, Upper Bavaria, Bavaria, Germany, Europe