This is a high-quality music box, "ORPHEUS," made by Sankyo. After purchase, it was displayed in a dark place. I played it a few times a year, and handled it with care. I haven't been listening to it much lately, so I'm putting it up for sale. It's a spring-powered music box in a wooden case, with a large number of comb teeth, allowing it to play complex melodies. The music box plays two pieces: Chopin's "Nocturne op.9 no.2" and "Waltz of the Little Dog op.64 no.1." ORPHEUS is a Japanese music box brand, known for its high-quality music boxes. Music boxes are also popular as gifts to express gratitude.