Nadezhda Krupskaya and Clara Zetkin at the Third All-Russia Conference on Preschool Education, Moscow, 1926 -- Daily LIFT #401
Zetkin, the famed German revolutionary and KPD deputy was attending during a visit to the USSR. Krupskaya was born February 26, 1868 and died in Moscow February 27, 1939 the day after her 70th birthday.