At the beginning of the bar GC has a C1-E tenth. It is certainly a mistake, which is proved by, among others, the 
before the bottom note, which does not make any sense before C1. All the remaining sources include an E1-E octave.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Terzverschreibung error, GE revisions, Errors in the number of ledger lines, Errors of GC
notation: Pitch