Circulars and letters of Aharon Propes about preparations for Betar Fourth Conference;
Article by Aharon Propes prior to the conference about nature of Betar, its aims, its principles, relationship between Betar and Hatzohar (Zionist Revisionists), necessity for unification in the Yishuv (pre-State community), Partition Plan, transfer of Betar to Eretz Israel, Shilton Betar.
Includes documents in Yiddish.