12 Etudes op. 25, Structure of the print: Front cover - p. [ii] of the front cover: a preview of other works by different composers published by Rozsnyai Károly - title page - p. [ii]: Foreword - p. [1]: a list of incipits of all Etudes (Op. 10 and 25) published within this collection - p. 2-61: 12 Etudes Op. 25 - p. [62-66]: a preview of other works by different composers published by Rozsnyai Károly - both pages of the back cover: a preview of other works by different composers published by Rozsnyai Károly, At the top of the front cover there are two annotations written in pencil and blue crayon: "114" and 67/6"., At the bottom of the front cover there is a black, round stamp: "TOWARZYSTWO IM. F. CHOPINA | BIBLIOTEKA | WARSZAWA" and a nadwritten shelfmark in blue ink: "4153."., At the bottom of p. [ii] there is a black, round stamp: "NARODOWY INSTYTUT FRYDERYKA CHOPINA | BIBLIOTEKA" and a handwritten shelfmark in pencil: "4153/n"., At the bottom of p. [66] there are three stamps: "TOWARZYSTWO IM. F. CHOPINA | BIBLIOTEKA | WARSZAWA", "NARODOWY INSTYTUT FRYDERYKA CHOPINA | BIBLIOTEKA" and "ODKWASZONE - 2008".