Brief Description: Biographical notes. Material pertaining to Erlich's and Alter's first arrest. Material from their post-prison period. Material re: their second arrest, interrogation, and sentencing. Material pertaining to international outcry on behalf of, and commemorative gatherings in memory of the executed Erlich and Alter. Material re: their "rehabilitation." Correspondence. Newspaper clippings. Photographs. Miscellaneous. Essay written by Alter about Physics, Russian.

Held at: