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

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

Barrel organ builder, man in barrel organ museum, Kaliston organ with perforated tape, Ariston, 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 builder, hand bends spring wires made of V2A steel into wooden valves, 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, sound pickup system, worm gear wheel with metal rod as a crank gear, Grassau, Upper Bavaria, Bavaria, Germany, Europe

Barrel organ, bellows, plywood, vents, covered with leather pieces and strips of cardboard, valves for suction and exhaustion of air, 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, Aristonette, playing children design, Grassau, Upper Bavaria, Bavaria, Germany, Europe