p. [II] round, black stamp: "NARODOWY INSTYTUT FRYDERYKA CHOPINA | BIBLIOTEKA" and on p. [12, 54.], p. [III] a round, green stamp: "TOWARZYSTWO IM. F. CHOPINA | BIBLIOTEKA | WARSZAWA" and a handwritten shelfmark in blue ink: "3435". The same stamp on p. [54], after p. [38] there is p. [46]. p. [39-46] the pages are flipped.
