Rubber stamp art, 1980s-1990s, Box: 5, Folder: 28; Box: OSx-6, Folder: 14; Box: OSxx-2, Folder: 8; Box: OSxxx-2, Folder: 1. Naiad and Walter Einsel papers, KA-0166-01. The New School Archives. https://findingaids.archives.newschool.edu/repositories/3/archival_objects/57826 Accessed April 20, 2025.