In the main text we give the 
hairpin entered by Chopin into FC (→GE1). In subsequent GE the mark was arbitrarily shortened and moved to above the top stave. A similar situation can be found in b. 681.
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
issues: Placement of markings, Scope of dynamic hairpins, GE revisions, Authentic corrections of FC
notation: Articulation, Accents, Hairpins