Page: 
Source: 
p. 5, b. 41-52
p. 1, b. 1-10
p. 2, b. 11-20
p. 3, b. 21-30
p. 4, b. 31-40
p. 5, b. 41-52
p. 6, b. 53-63
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Main text
FC - Fontana's Copy
FE - French edition
FE1 - First French edition
FE2 - Corrected reprint of FE1
FED - Dubois copy
FEJ - Jędrzejewicz copy
FES - Stirling copy
GE - German edition
GE1 - First German edition
GE1a - Corrected reprint of GE1
GE1b - Flawed impression of GE1
GE2 - Second German edition
GE3 - Revised impression of GE2
EE - English edition
EE1 - First English edition
EE2 - Corrected reprint of EE1
EE3 - Revised impression of EE2
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Articulation, Accents, Hairpins
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FC - Fontana's Copy
FE - French edition
FE1 - First French edition
FE2 - Corrected reprint of FE1
FED - Dubois copy
FEJ - Jędrzejewicz copy
FES - Stirling copy
GE - German edition
GE1 - First German edition
GE1a - Corrected reprint of GE1
GE1b - Flawed impression of GE1
GE2 - Second German edition
GE3 - Revised impression of GE2
EE - English edition
EE1 - First English edition
EE2 - Corrected reprint of EE1
EE3 - Revised impression of EE2
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  b. 42

The natural lowering a1 to a1 is only in GE and EE3. It is a patent, characteristic for Chopin inaccuracy of notation, rightly revised in GE and EE3.
In all sources there is a superfluous  before d1 in the 1st chord in the bar.

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

Missing markers on sources: GE1b, FED, FEJ, FES, FE1, FE2, GE1, GE1a, GE2, GE3, FC, EE1, EE2, EE3