Page: 
Source: 
p. 4, b. 29-38
p. 1, b. 1-8
p. 2, b. 9-18
p. 3, b. 19-28
p. 4, b. 29-38
p. 5, b. 39-49
Main text
Main text
AI - Earlier autograph
A - Autograph
CDP - Copy for Delfina Potocka
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
Select notes: 
Category
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Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Notation
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Differences
No differences
AI - Earlier autograph
A - Autograph
CDP - Copy for Delfina Potocka
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
Importance
All
Important
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  b. 36-38

No signs in AI & CDP

in A (→GE), FE & EE

Chopin added the dynamic hairpins in bars 36 and 38 (and also in bar 37) probably in the last phase of preparing the Etude for print, which is indicated by their absence both in AI and CDP.

Compare the passage in the sources»

category imprint: Differences between sources; Corrections & alterations

issues:

notation: Articulation, Accents, Hairpins

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