Contains Oko handwritten notes on Spinoza, Gebhardt handwritten notes, Societus Spinoza accounts and membership list, Domus Spinoza Foundation contributors, and Spinoza related published writings.
Sets of catalog cards (some incomplete) of Oko's and Gebhardt's Spinoza research. The card file sets include the following card sets: Gebhardt's personal library organized alphabetically; Oko's personal library organized by subject and duplicates organized by shelf; two copies of The Spinoza Bibliography, organized alphabetically and by topic respectively.