The roll being discussed here was recorded on February 28, 1910.
The date is printed on those very few surviving rolls.  So it can't
be a person who died in 1893.  I would say the date is wrong.
Anyway there were no Soviet musicians at this time.

Because the composer played his own piece, it could very easily be
a recording made for a good or respected customer like Charles Herman
Steinway.

In a prospectus for the Welte-Mignon from about 1912, there is
a customer mentioned with the name of "Oberleutnant des Chevaliers
de Garde P. A. Khowotschinsky in St. Petersbourg," a nice mixture of
languages because his rank is given in German (not in French "premier
lieutenant") and the rest in French.  But the transcription of the
name is strong German, with w for v and tsch for tch.  See that in
the third attachment below.

It could be a similar case like the recordings of Graf Carl von
Pückler (1857-1943), who recorded the Appassionata by Beethoven (rolls
1504 and 1506).  Pückler was a diplomat, not a soldier, but well known
in his time and he was known for playing this Beethoven piece.

The 1905 Zeitschrift für Instrumentenbau, page 382, says: "Kaiserlich
Deutscher Gesandter Graf K. von Pückler gab am 20.Jan.1905 ein Konzert
in Luxemburg und spielte u.a. die Appassionata." ("Imperial German
envoy Graf K. von Pückler gave a concert in Luxembourg on January 20,
1905, and played, among other things, the Appassionata.")

Kind greetings from
Gerhard Dangel - in retirement in the hometown of Welte

 [ https://www.mmdigest.com/Attachments/20/06/08/200608_183135_kundenliste_franz_01.jpg 
 [ https://www.mmdigest.com/Attachments/20/06/08/200608_183135_kundenliste_franz_02.jpg 
 [ https://www.mmdigest.com/Attachments/20/06/08/200608_183135_kundenliste_franz_03.jpg