In each of the sources, the ornament at the end of the bar has a different form. We adopt 
written in EF over the R.H., as its application in this place does not raise any stylistic doubts, while 
in PE may be a result of a misreading of the sign by the engraver (both and tend to be very similar in Chopin's autographs). Therefore, the main text combines the most certain elements of the sources: an ornament, only in the R.H., as it is in EF and PE, and the sign of from JC and EF.
None of the sources marks lowering the upper note of the trill. We complete this deficiency, as the use of appropriate alterations was most often left to the performers' perspicacity; moreover, the use of a
is unquestionable here.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
notation: Ornaments
