It is very unlikely that this work is public domain in the EU, or in any country where the copyright term is life-plus-70 years. However, it is in the public domain in Canada (where IMSLP is hosted) and other countries where the term is life-plus-50 years (such as China, Japan, Korea and many others worldwide). As this work was first published before 1927 or failed to meet notice or renewal requirements to secure statutory copyright with no "restoration" under the GATT amendments, it is very likely to be public domain in the USA as well.
|First Publication||1904 or earlier
|Alternative. Title||Impression musicale|
|Opus/Catalogue NumberOp./Cat. No.||Op.14|
|I-Catalogue NumberI-Cat. No.||IEN 1|
|First Publication.||1904 or earlier
|Composer Time PeriodComp. Period||Early 20th century|
While the publication date on the WorldCat entry for the solo piano version of this (1904) is later than the estimated publication date of the 2-harp/2-piano version ("[1890-]", the latter clearly says "Transcription", so the assumption is that the original was solo piano. Of course, perhaps it was for orchestra. Tagging for "undetermined", since it is exactly that.
The 1904 publication uses Norwégienne, Op.14. Should be Norvégienne (BdlF has this though Worldcat doesn't), one assumes (accurate French)?? Also: What is the source of "[1890-]"? Perhaps the transcription is ca.1904+ as well. - ES