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 1926 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.
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|Alternative. Title||Concertino pour piano à la main gauche et orchestre|
|Opus/Catalogue NumberOp./Cat. No.||H.173|
|I-Catalogue NumberI-Cat. No.||IBM 10|
|Year/Date of CompositionY/D of Comp.||1926|
|First Performance.||1947 Feb. 26, dedicatee, Prague, FOK-Orchestra|
|Dedication||Otakar Hollmann (1894-1967)|
|Average DurationAvg. Duration||20 minutes|
|Composer Time PeriodComp. Period||Modern|
|Instrumentation||piano (left hand) and orchestra
score says Hollmannov because that's how one says dedicated -to- Otakar Hollmann.
Dedicatee premiered the work on Feb. 26 1947 in Prague according to Halbreich.