The front cover has a type-written plate on it that reads:
- Joseph Haydn
Orfeo ed Euridice
Leihmaterial unverkäufliches Eigentum der
UNIVERSAL-EDITION A.E., WIEN
At the bottom of the last page there is this: "Autographische Vervieltältigung Josef Dörr, Wien V."
So, this is copy of a hand-written score, with no year of publication and no one credited for making the piano reduction; it's also a rental score, not for sale. It seems that Universal-Ed. is the distributor rather than the publisher, since their imprint is not integral to the published score, but rather is stamped or glued onto it.
What's your advice about scanning and uploading?
Thanks in advance for any information.