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b. 61

composition: (Op. 4), Sonata in C minor, Mvt IV

e2 tied in A (→GEEE,IE)

e2 repeated in FE

e2 tied, our alternative suggestion

..

The missing tie to e2 is most probably due to a mistake by the engraver of FE – see the note above.
As in bar 57, in our alternative suggestion concerning the rhythmic notation of the main text, we use the notation Chopin applied in analogous bar 258 and 262, which is more legible. 

category imprint: Differences between sources; Editorial revisions

issues: Errors in FE

b. 61-62

composition: (Op. 4), Sonata in C minor, Mvt IV

Slur in A (→GEFE,IE)

Slur in A (→GEFE,IE)

No slur in EE

..

The missing slur in EE is most probably one of the many oversights by the engraver of EE1, left uncorrected in EE2.

category imprint: Differences between sources

issues: Errors in EE

b. 63

composition: (Op. 4), Sonata in C minor, Mvt IV

..

In A the  restoring c3 at the end of the bar is missing. Chopin's patent mistake was corrected in GE (→FE,EE,IE).

category imprint: Differences between sources; Editorial revisions

issues: Omissions to cancel alteration , GE revisions , Errors of A

b. 67

composition: (Op. 4), Sonata in C minor, Mvt IV

 in A (→GEEE,IE)

in FE

Our variant suggestion

..

The comparison with the pianistically analogous passages in bar 65 and 69 suggests that Chopin could have committed a mistake in positioning the  mark in A. Taking into account this possibility, in the main text we suggest a variant solution in which we put the A mark (being the authentic one) in brackets, while the one added by us by analogy with the adjacent passages – in square brackets.
The FE version is most probably an inaccuracy – the reviser would have moved the mark to the end of the bar. 

category imprint: Differences between sources; Editorial revisions

issues: Inaccuracies in FE , Errors of A

b. 67

composition: (Op. 4), Sonata in C minor, Mvt IV

..

In A there is no accidental to the 6th quaver in the bar. The patent inaccuracy was corrected in GE (→FE,EE,IE).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A