This is a paper-disc music box, patented in Germany in 1880. It plays 13-inch perforated paper discs, which attach to the top of the unit. It is hand-cranked. We applied a disc and cranked it; while the discs do turn, no sound is produced. There may be an issue with the bellows or we may be doing something wrong; either way, the machine does not currently produce sound. The collection of media included is quite extensive, with 30+ discs. Dimensions: H 8" x W 16" x D 16" Condition: Unit does not produce sound (possibly user error). Three of the feet attached - two detached but included for reattaching. The top surface of the unit is lifting up at the corners. Significant signs of wear and use throughout; sold as-is.