Free public domain sheet music from IMSLP / Petrucci Music Library
Scores and Parts
Leipzig: Friedrich Schwertner Verlag, n.d.(ca.1930s?)
Public Domain - Non-PD EU [tag/del]
This file is part of the Sibley Mirroring Project.
This company possibly not even founded until sometime in the 1930s. (URresearch says "1900" because their system interprets "19--" as 1900.)