b. 9-11
From the last beat of b. 9 to the middle of b. 11, the L.H. octaves are written in A in an abridged manner, with 8. However, Chopin explicitly requested that the abbreviation not be used in print by writing the following note at the bottom of the page in A: "Il faudrait graver en notes les 8ves marquées dans la basse par 8." [One should engrave with notes the 8ves marked in the bass with 8]. Chopin had a hard time choosing the right wording for that note, which can be seen on the basis of the crossings-out and additions, which evidence that it was being gradually specified.
Compare the passage in the sources»
category imprint: Differences between sources; Source & stylistic information
issues: Abbreviated octaves' notation
notation: Shorthand & other