Structure of the print: title page - p. 2-7: Impromptu Op. 36 - p. [8]: a list of other works by F. Chopin published by Anton J. Benjamin., Title page contains a round, green stamp: "TOWARZYSTWO IM. F. CHOPINA | BIBLIOTEKA | WARSZAWA" and a handwritten shelfmark in blue ink: "3894"., In the bottom left corner of the title page there is a handwritten annotation in pencil: "40-"., At the bottom of page 2 there is a round, black stamp: "NARODOWY INSTYTUT FRYDERYKA CHOPINA | BIBLIOTEKA" and a handwritten shelfmark in pencil: "3894/n"., In the upper left corner of page [8] there is a handwritten annotation in pencil: "akc. 111/74"., At the bottom of page [8] there are two round stamps: "TOWARZYSTWO IM. F. CHOPINA | BIBLIOTEKA | WARSZAWA" and "NARODOWY INSTYTUT FRYDERYKA CHOPINA | BIBLIOTEKA".
