Of the limited edition of 1150 copies, this is №54 (on Japan paper, signed by Bartsch and by von Bayros).
Owner's binding imitating quarter-morocco, a red label with gilt lettering to spine (possibly by Ms Hunt, who was an amateur bookbinder). Bookplate on front pastedown: "Ex libris Rachel McMasters Miller Hunt | S. B. Hill Dec 1913 | A.J. Downey Sc." Alfred James Downey (1882-1944). Rachel McMasters Miller Hunt (1882-1963). Sarah B. Hill had done lettering for Ms Hunt. On back pastedown: Stamp "Hunt Libraries CMU" and sticker "Gotham Book Mart | 128 West 45th street | New York".
This is from an edition of Carcassonne:

Additional Information
| Collection | Library |
|---|---|
| Type / Purpose | Book |
| Period | Early 20th century |
| Country | Germany |
| Language | German |
| Media/Technique | Paper |
| Subject | Mozart, Wolfgang Amadeus (1756 – 1791) , Mozart, Wolfgang Amadeus (Austrian, 1756 – 1791) , Opera |
| Creation / Publishing year | 1922 |
| Edition | 1st edition, thus |
| Binding | Half-calf , Hardcover , Owner's binding |
| Size | 25.5 x 20 cm |
| Signature | Bookplate |
| Acquisition year | 2019 |