A separate edition of the etiude Op.10 /12 in the fourth edition of the series: "DOUZE GRANDES ÉTUDES | POUR LE PIANOFORTE", op. 10 by Chopin, in two Books [Liv I, Liv II with added publisher's numbers 2960-2972]., Title page: title of the series; traces of oval blind stamp: "MUSIKALIEN-HANDLUNG | [...] BRESLAU", Continuation of page numbering in the Book II of the seris, above., Page 23: heading as the title of the source: N|o 12.; footline: Stich & Druck von Fr. Kistner in Leipzig., Plate numbrs: 2972 [below] 1019, pages 23-27.
