Composition by violinist Boris Lensky himself, probably early 1920s. Boris Lensky (real name Jonas Chits) was born in Haarlem, the Netherlands, in 1883. He died in 1972.
More in my 78 RPM RECORDS RESCUED FROM OBLIVION playlist: 78 rpm records from my own (small) collection, self-ripped, not available on youtube or in any other digital form before, and all good stuff!