ppsh-41:Unidentified partisans of the 1st Proletarian Brigade armed with Czech ZB vz. 26 machine gun
ppsh-41:Unidentified partisans of the 1st Proletarian Brigade armed with Czech ZB vz. 26 machine guns. This photo was taken in Žarkovo Selo(a village near Belgrade) on the eve of the offensive. -- source link