1 in 
The A (→GE) and FE1 version is probably Chopin's mistake – the chord is written there in bass clef, while with a greater number of ledger lines, Chopin would relatively often write one too many or one too less. This assumption is confirmed by the changes introduced at the stage of proofreading FE2 (→EE), almost certainly at Chopin's request.
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
issues: Errors in the number of ledger lines, Errors of A, Accompaniment changes, Authentic corrections of FE
notation: Pitch