The file contains information pertaining to travel to Eastern Europe for research related to "The Gossamer Thread." The file is divided into chunks of countries labelled on folds of paper, between which are pamphlets, correspondence, and research on the respective country, mostly related to synagogues and museums.

Contains organizational material related to the Association of Bukovina Jews, manuscripts authored by Harry Hershman, and personal correspondence.

The papers represent the scope of Brainin’s life endeavours as writer, editor, biographer, critic, translator, lecturer, Zionist and one of the founders of the Jewish Public Library. The Fonds is divided into five major series: Literary and editorial activities, Biography and criticism, Correspondence, Special Collections, and the records of the Jewish Public Library Archives Committee.