Apart from the 1 digit over the last quaver in bar 18, the entry in FEH includes one more mark, which is difficult to interpret, since it may be a sharp or a slur. According to us, its placement suggests that it was supposed to combine that quaver with the minim in bar 19, which would practically indicate the same fingering as in the two remaining pupils' copies. See the adjacent note on the slur.
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category imprint: Differences between sources
issues: Annotations in teaching copies, Annotations in FED, Annotations in FES, Annotations in FEH
notation: Fingering