On page [3] is introduction by Zbigniew Jachimecki., On page [12] is a postscript by Krystyna Kobylańska., On pages [2] and [13] a round, black stamp: "NARODOWY INSTYTUT FRYDERYKA CHOPINA | BIBLIOTEKA" and a handwritten shelfmark in black link: "2644/n" on page [2]., On pages [2] and [13] a round, black stamp: "TOWARZYSTWO IM. F. CHOPINA | BIBLIOTEKA | WARSZAWA".
