Wolfgang Amadeus Mozart - Sonata for Four Hands on a Harpsichord or Fortepiano, Op. XII, Paris, Sieber, 1788–1791.

Sheet dimensions: 253 x 328 mm, p. 3 nlb (title page and two blank pages), 2–39, 40 blank. Gribenski, p. 61, 16.21, RISM A/I M 6699, 2 locations—
, Biblioteca civica musicale Andrea della Corte, Turin (I-Tci), and Universiteit Utrecht—Instituut voor Muziekwetenschap, Utrecht (NL-Uim). A clear impression of the plate, the publisher’s signature (not a stamp), no publication number. Sieber changed the house number from 92 to 85 around 1791. On the title page, there are traces of a sticker from another seller and a price that was (most likely) altered by that seller. A very rare edition published during W. A. Mozart’s lifetime, just a few months after the Viennese Artari edition (December 19, 1787). First French edition. Minor soiling on the title page and the last page; otherwise, the interior is in very good condition. A strong plate impression indicates a very early printing. Handmade paper with a watermark.