Title: Materīaly k istorīi Prokhorovskoĭ Trekhgornoĭ manufaktury i torgovo-promyshlennoĭ di︠e︡i︠a︡telʹnosti semʹi Prokhorovykh, gody 1799-1915
Subjects: History, Prokhorovskai͡a Trekhgornai͡a manufaktura, Textile industry, Trekhgornai︠a︡ manufaktura
People: Prokhorov family