Vintage Reuge Sainte Croix 2/28 Swiss Music Box Mozart, Boccherini Stunning! The only real issue I see is shown in the last photo and it's very small. This box is absolutely gorgeous.
I do not have the key, but they are basic and easy to find. Please feel free to ask me any questions you may have. This item is in the category "Collectibles\Decorative Collectibles\Music Boxes".
The seller is "bayareaauction77" and is located in this country: US.