Speech of Grigori Zinoviev on May 1st 1918, Petrograd

Boris Souvarine Papers - Soviet Russia Photos.graduateinstitute.ch/home/research/library/archives/boris... ( http://graduateinstitute.ch/home/research/library/archives/boris-souvarine.html ) ..Notes: The picture holds the mention "1st of May, 1918. Speech of G. Zinoviev, Chairman of the Soviet of Petrograd. Commissioner of the Workers of the Commune, Champ-de-Mars"...Unknown photographer...Description: 1 photograph. Black and white ; 8 x 11.5 cm.