Title: T︠S︡arstvovanie Nikolai︠a︡ I v polit︠s︡eĭskikh otchetakh
Subjects: Archives, Police, Sources, History, Vice control, Secret service, Police reports, Russia. Sobstvennai︠a︡ Ego Imperatorskago Velichestva kant︠s︡eli︠a︡rīi︠a︡. III otdi︠e︡lenīe, Russia
Places: Russia
Time periods: 19th century, Nicholas I, 1825-1855