https://oac.cdlib.org/findaid/ark:/13030/kt538nf189/
while i don't have the answer to your question, i do have a lead to the same destination.
that link is to the archives of the Okhrana, the Russian Secret Police under the Tsar up until the 1918 Bolshevik revolution and Jewish murder of the Royal family.
while reading random documents, i found one from 1891 where the Okrana officer reports that of the 20,000 Bolsheviks they are monitoring, 89% of them are Jews. the Okrana knew very early on that the Communism Problem was a Jewish Problem.
if you search the Okrana archives you can find more documents about the Jews being behind the Bolsheviks. there are other Okrana archives online as well, including one in Russia, but i dont read Russian to make use of it.
