#179457-- The violinist's fingerings in the flute/violin part are of uncertain origin, whereas the fingerings in the piano part are also found in the Schlesinger edition (see #181171 below). Processed for readability in letter size by JDH.
A separate flute/violin part [not scanned] is part of the edition. "Herausgeber" Dieter Sonntag writes in the Preface: "...The edition appears [as] in the original text; merely the note representation has been modernized. The fingering remains in the original..." It is therefore a 'scientific' edition whose copyright ended by 1990 or earlier. The lack of editing put it in the public domain from the outset in the USA.
Sonate pour le pianoforte avec accompagnement de Flute ou Violon, Op.50