None of the sources seems to be authentic enough. No accidentals before the third octave in GC (→GE1) and FE suggests its reading as D
-d, however, it can be argued that in Chopin's works we often see omission of accidentals in similar situations. On the other hand in EE the naturals must have been added by a revisor (it is more than certain in GE2). In contrast to b. 95, the stylistic criteria suggest erranoeous omission of naturals: bars 433-434 belong to the first part of chromatic progression, which solely aims to retain the the interval structure of motifs. Therefore, the D-d octave version we present as the main one.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, GE revisions, Omission of current key accidentals
notation: Pitch