in the same book there is a reference later in the book: 3177/n, At the bottom of page [5] a round, green stamp: "TOWARZYSTWO IM. F. CHOPINA | BIBLIOTEKA | WARSZAWA" and a handwritten shelfmark in blue ink: "3176/n"., At the bottom of page [6] there is a round, black stamp: "NARODOWY INSTYTUT FRYDERYKA CHOPINA | BIBLIOTEKA" and a handwritten shelfmark in pencil: "3176/n".
