The Charles Pergler Papers comprise 1.5 linear feet of material consisting of correspondence, legal documents, clippings, ephemera, diaries and other materials arranged in 39 folders in 1 box.
The Rudolf Allers papers consist of 51 copies of 25 pamphlets by Allers on psychiatry and philosophy arranged in 25 folders in two boxes.
The Kim Philby - Oleg Kalugin Collection consists of five letters from Philby to Kalugin and three typed manuscripts written by Philby. In the letters, Philby expresses his friendship for Kalugin and mentions mutual acquaintances. The manuscripts, for their part, concern counterintelligence. They are typed with a few handwritten notations. The Kim Philby - Oleg Kalugin Collection is preserved in one small archival box (0.25 linear feet).