The presidium of the 9th Congress of the Russian Communist Party (Bolsheviks). 1920. Sitting (from left): Abel Yenukidze, Mikhail Kalinin, Nikolai Bukharin, Mikhail Tomsky, Mikhail Lashevich, Lev Kamenev, Evgeny Preobrazhensky, Leonid Serebryakov, Vladimir Lenin and Alexei Rykov.