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Mechanical music factory in the form of a large music box with steel, which, with the aid of moving anreißhebel and of a moving, punched cardboard strip - notes of music from any desired length can be sound
Mechanical music factory in the form of a large music box with steel, which, with the aid of moving anreißhebel and of a moving, punched cardboard strip - notes of music from any desired length can be sound
